idea that electric current is a flow of positive particles in one direction, when supposedly it's really a flow of negative electrons going the other way.In fact, the chiders are wrong. Question. The flowing negativesand positives are usually not equal,and the speed of the positives in one direction is usually not the same as the speed of the negatives in the other. Question. (a) Deflection increases. b. If a hundred positive particles flow to the left per second, this givesexactlyas much magnetism, heating, and voltage as a hundrednegativeparticles flowing to the right per second. That will causethe pressure to fall again.In order to get as much ammonia as possible in the equilibrium mixture, you need as high a pressure as possible. We don't care about their speed, and we don't care about their number. In an AC generator, the ends of the coil are connected to two full rings of copper called slip rings. These threetypes of meter will agree that a"current" is a"current" regardless of the particle polaritiesand flows. Its principle is when a rectangular coils is placed in a magnetic field and current is passed through it, a force acts on the coil, due to which the coil rotates. In the following list of devices-materials, the electric charges found within the conductors are a combination of movable positive and negative particles. Place a magnetic compass near one end of the magnetc (N-pole) and mark the positions of the two ends (N and S-poles) of the compass needle using a sharp pencil. Why is if necessary to earth metallic casing of electric appliance?Answer: Earth will acts as a safety device. The postive atoms behave like flowing protons, but protons with entire atoms attached. Thus, brushes help in transferring current from the coilABCD to external circuit. The conventional current must be a flow of conventional charge, so first we should teach our students about the existence of oversimplified charges,"conventional charges," charges which we pretend are inside all the wires. (c) Describe an activity to demonstrate the direction of the magnetic field generated around a current carrying conductor. State the rule which helps in determining direction of induced current.Answer:Electromagnetic induction is the phenomenon of production of emf (potential difference) or current in a coil due to change in magnetic field around it.Fleming right hand rule: If we stretch our right hand thumb, forefinger and middle finger perpendicular to each other in such a way that forefinger points the direction of magnetic field, and thumb points the direction of force acting on the conductor (motion of the conductor), then the middle finger points the direction of induced current in the conductor. A beam of alpha particles enters a chamber moving along the magnetic field. (ii) The number of turns in the solenoid(iii) Nature of core on which wires are wound in solenoid. Similarly, draw many field lines on both the sides of the bar magnet as shown in figure. Coil A is connected to a galvanometer while coil B is connected to a battery through a key. During your painful experience there obviously was a considerable current directed through your body. CLASS 10 ELECTRICITY. The Amps would not quite match avisual picture of moving particles.But if we truely believe that the amperes are real,we might start to doubt the existence of flowing charges. [NCERT Exemplar] The flowing negativesand positives are usually not equal,and the speed of the positives in one direction is usually not the same as the speed of the negatives in the other. Question. What is a solenoid? The centre finger indicates the direction of current & thumb gives the direction opf the force of motion. Answer: An electromagnet works on the principles of magnetic effect of current. Weignore both the chemical effects and the effects of the velocity and direction of moving particles.We ignore the collisions between positive and negative particles. By convention, we define the flowing charges to be positive. Charge actually comes in two varieties: positive particles and negative. How is the magnetic field produced in a solenoid used?Answer:Magnetic field produced in a solenoid can be used in making a soft iron piece electromagnet. In the everyday world of electronics, these particles arethe electrons and protonssupplied by atoms in conductors.Physicists may additionally deal with other charged particles: muons, positrons, antiprotons,etc. (iii) A current carrying curricular loop also produces magnetic field. Answer: During an electric current, both varieties of particles are flowing past each other in opposite directions.TWO-WAY POS/NEG ELECTRIC CURRENTS CAN EXIST IN:*.batteries*.human bodies*.all living organisms*.acids (mostly protons flow)*.the ground*.the ocean*.the sky (ionosphere)*.electrolytic capacitors*.aluminum smelters*.liquid mercury and solder*.ion-based smoke detectors*.electroplatingtanks*.fuel cells' proton conductor and "solid acid" membranes*.electrophoresis gels in research (esp. The real charges are too complicated to deal with, and theadded complexity gets us very little information as long as we're only interested involtage drop, magnetic fields, and heating.Particle-flow is real, "Amperes" are notOnce we start ignoring the speed and direction of the charges, then we can easily build electrical instruments or"amp meters" which measure the Conventional Electric Current in terms of the magnetism which the charge-flow creates or by the voltage drop which appears across a resistor,or by the temperature rise being created in a calibrated pieceof resistance wire. And it's only true for solidmetals. Weignore both the chemical effects and the effects of the velocity and direction of moving particles.We ignore the collisions between positive and negative particles. But to measure currents, won't we first need to measure how much of the current is composed of negative particles going one way, and of positive particles the other? (a) reversing the direction of floe of floe of current (b) doubling the magnitude of current.Answer: The direction of earths magnetic field is from U-south to 0-north. So the degree of deflection of the compass should decrease instead of increasing. If a hundred positive particles flow to the left per second, this givesexactlyas much magnetism, heating, and voltage as a hundrednegativeparticles flowing to the right per second. Yet it's not real, it's simply one way to simplify things. C. If magnetic field lines are parallel and equidistant, they represent zero field strength. Two negatives make a positive.) And that trick holds the answerto the question.Electric currents produce three main effects: magnetism, heating, and the voltage drop across resistive conductors. Answer:(a) (i) direction of current, (ii) direction of magnetic field. We dare not think that a current in ametal wire is"real," while currents in human flesh somehow are not.Well, what is"current? Insteadweintentionally define"electric current" as being a flow of exclusively positive particles flowing in one particular direction. Q.3. more closer the magnetic field lines more the strength of magnetic field. (ii) The strength of magnetic field is higher in this region. Question. (ii) The direction of magnetic field at the centre of a current-carrying circular loop is perpendicular to the plane of the loop. These both parts are separated from each other and are soldered to the two ends of the coil. Now pass a current through the aluminium rod from end B to end A. (b) Overloading means large amount of current flows in the circuit. Out of the two which one is used in transmitting electric power over long distances and why?Answer:a. There's a genuine difference between the simplified pictureversus the actualparticle flows. What is the function of an earth wire? Class 10 Magnetic Effects Of Electric Current Extra Questions Question 7. What kind of magnetic field is produced by a current carrying solenoid? (c) Flemings right hand rule is used to find the direction of induced current in a closed circuit placed in changing magnetic field as in electric generator. If we did this, then"conventional current" would bemuch easier to accept, no? The relative strength of the magnetic field is shown by degree of closeness of the field lines. Yes, this is true but only true for metals. defined & explained in the simplest way possible. In reality the electrons andprotons carry electric charges ofequalstrength.If electrons are"electricity", then protons are"electricity" too.Now everyone will rightly tell methat the protons within wires cannot flow, while the electrons can. An amp-meter mightnot be appropriate whenused in an exotic physics experiment. Rule: Flemings right-hand rule. We ignore their speed, and instead measure only the flow rate: the number of charges flowing per second. If a current carrying straight conductor is placed is east-west direction, then the direction of the force experienced by the conductor due to earth's magnetic field is: (a) downward (b) upward (c) east-west (d) west east Answer Question. What is galvanometer? (v) Connect aluminium rod in series with the battery and key. We might lose track of the facts that electric current is an actual flow of matter. Question. Answer: The insulated copper wire is wrapped on a soft iron piece. Two circular coils A and B are placed close to each other. (ii) Why does magnetic field at the center of current carrying circular loop appear straight? (b) Two coils P and S are wound over the same iron core. A few text and reference books even outright state this, saying that electricity is composed of electrons. The field is uniform inside the solenoid. When a compass needle is brought near a bar magnet then due to repulsive force between unlike poles and attraction between unlike poles, the compass needle is deflected and settle in the direction of net magnetic field. An amp-meter mightnot be appropriate whenused in an exotic physics experiment. (b) use of fuse. Do we follow the negative particles and ignore the positive ones? (a) Draw the pattern of magnetic field lines through a bar-magnet and around a current carrying solenoid. The negative atoms behave like electrons which are dragging an entire atom alongwith them.So, inside humanflesh which direction did the electric current REALLY go? State the direction of magnetic field in the followingcase: Answer:Perpendicular to both current and force on the conductor outward the plane of paper. (a) Describe an experiment with a diagram to show that force is exerted on a current carrying conductor when placed perpendicular in a magnetic field. Magnetism, heating, and voltage drop together represent nearly every feature that's important in everyday electrical circuitry. (a) use of earth wire and proper earthing. Therefore, as far as most electrical devicesand circuits are concerned, it makes no difference if the current is made of positive particles going one way, or negative particles going the other or halfas many negatives flowingbackwards through a crowd of half as many positives.Put simply, the"Ampere" doesn't care about the direction or speed of the flowing particles.So, in order to simplify our measurements and our mental picture of ElectricCurrents, we cut away the unused parts of the picture. Question. Question.Consider a circular loop of wire lying in the plane of the table. List the properties of magnetic lines of force.Answer: Properties of magnetic field lines of force as follows:a. Imagine a current-carrying straight conductor is held in right hand such that the thumb points towards the direction of current. Application: Electrical generator. Answer: Again galvanometer shows a deflection but in opposite direction to the previous one.c. (b) (i) No two magnetic field lines intersect with each other at any point. Write the necessary law for finding the direction of magnetic force acting on a moving charge particle in a magnetic field. Ourown nervous system is based on the two-way currents. (b) Magnetic field lines are closed curves.Answer:Magnetic field lines: It is defined as the path along which the unit North pole (imaginary) tends to move in a magnetic field if free to do so. But the"electricity" in common electrical devices is limited to positive protons andnegative electrons. That doesn't apply in this case.There is always a down-side to using anything other than the equation proportions. While trying to understand electric circuits and electrical measurements, we need a simpleway to take measurements of this important entity named"Electric Current." Which type of generator is used at power stations? What is indicated by crowding of magnetic field lines in a given region?d. It makes no sense to try to achieve an equilibrium mixture which contains a very high proportion of ammonia if it takes several years for the reaction to reach that equilibrium.You need the gases to reach equilibrium within the very short time that they will be in contact with the catalyst in the reactor.The compromise400 - 450C is a compromise temperature producing a reasonably high proportion of ammonia in the equilibrium mixture (even if it is only 15%), but in a very short time.The pressureEquilibrium considerationsNotice that there are 4 molecules on the left-hand side of the equation, but only 2 on the right.According to Le Chatelier's Principle, if youincrease the pressure the system will respond by favouring the reaction which produces fewer molecules. (ii) In both the cases stronger field exists at the poles compared to the middle part.Dissimilarities(i) In bar magnet, the poles are not exactly at the ends of the magnet, in solenoid poles can be considered to be lying at the edges. Question. These various conductors are nothing exotic. Question. By convention, we define the flowing charges to be positive. Question. Question. And it's only true for solidmetals. Magnetic Effect Of Electric Current Class 10 Extra Questions Question 5. So, during the time when the charges flow between the two plates of the battery, what's therealdirection? 0 times. Using just these three bars how will you find out which is which? (i) What is the direction of magnetic field lines outside a bar-magnet? What key K is pressed on.b. These charged particles are moving in the magnetic field which experiences force.The current carrying conductor has its own magnetic field, when it superimpose the magnetic field of magnet. (iii) State one advantage of AC over DC. In an electric generator, the magnetic field in the conductor is changed by moving the conductor in the magnetic field of the magnet. When key is closed, the current begins to flowi n the coil. c. On increasing the number of turns magnetic field increasing. Name the device which converts mechanical energy into electrical energy. The production of magnetic field around a conductor when electric current is passed through it. For example, what happens if we all spend many years thinking in terms of such simplified"electric current?" Describe the activity that shows that a current-carrying conductor experiences a force perpendicular to its length and the external magnetic field. (ii) If we reverse the direction of current, the direction of magnetic field will also be reversed. Magnetic Effect Of Electric Current Class 10 Extra Questions And Answers Question 1. Save. If we did this, then"conventional current" would bemuch easier to accept, no? Towards south b. Does the direction of the force remain unchanged on two sides of the coil resulting in continuous rotation of the coil in same direction. (ii) is affected when the direction of flow of current is reversed?Answer:(i) The strength of magnetic field is directly proportional to the strength of current. The conductor experiences a force and the direction of this force is given by Flemings left hand rule. Equal and opposite forces act on these arms (in a direction according to Fleming's Left hand Rule) and they form a couple. What will happen to the deflection of the galvanometer if this coil is moved towards a stationary bar magnet and then moved away from it?Give reason for your answer and name the phenomenon involved.Answer:In both the case there is a change in magnetic field associated with the coil, an induced current is produced in the coil, but in opposite direction. The current in your flesh was a flow of positive sodium and potassium atoms, negative chlorine, and numerous other more complexpositive and negative molecules. Thisfundamental errorleads most peopleto imagine that electric currents arealwaysa flow of negative particles. It cannot detect real current, instead itonly measures our conventionally-defined simple current. Ravi took his grandma for MRI test. During your electrocution, it was these charged atoms which flowed along as an electric current. (i) When north pole is pushed into the coil, a momentary deflection is observed in the galvanometer. Electronics teachers and authorsof textbooksare often chided for passing on an "error" to their students. current moves from higher potential to lower potentisl, direction of electric current is always opposite positive terminal, direction of electric current is opposite to direction of flow of electron mean electron move from (-)ive terminal to (+)ive so direction of current will be (-) to, direction of electric current is opposite to direction of holes. What is the function of an earth wire? State the observation made by Oersted on the basis of his experiment with current carrying conductors.Answer:A magnetic field is produced near a current carrying conductor which last so long till there is current in the conductor on reversing the current the direction of magnetic field is also reversed. idea that electric current is a flow of positive particles in one direction, when supposedly it's really a flow of negative electrons going the other way.In fact, the chiders are wrong. Q.5. How does this force gets affected on:(i) doubling the magnitude of current, (ii) reversing the direction of flow of current, (iii) reversing the direction of magnetic field.Answer:The force experienced by a current carrying conductor when placed in a magnetic field or the force experienced by a charged particles moving in a magnetic field is called magnetic force.Fleming left hand rule: According to this rule, on stretching the thumb, forefinger and the middle finger of your left hand such that these are perpendicular to each other, if the force finger points in the direction of magnetic field and middle finger in the direction of current, then the thumb will point in the direction of motion of force acting on the conductor. Question. What will be the direction of the force experienced by this conductor due to earths magnetic field? Electronics teachers and authorsof textbooksare often chided for passing on an "error" to their students. 200 atmospheres is a high pressure, but not amazingly high.Rate considerationsIncreasing the pressure brings the molecules closer together. A galvanometer is an instrument that can detect the presence of a current in a circuit. Justify your answer. (iii) If the bar magnet is held stationary inside the coil, then no induced current is set and galvanometer does not show any deflection. Question. Teachers promote the(wrong?) the strength of the current passing through this loop is double?b. Question 1. While trying to understand electric circuits and electrical measurements, we need a simpleway to take measurements of this important entity named"Electric Current." In this chapter, we will study the effects of electric current : Moving charges or electric current generates a magnetic field. Justify your Answer: What will happen when the direction of current in the solenoid is reversed? Under what condition does a current carrying conductor kept in a magnetic field experience maximum force? which is in direction of (-) to (+ ), sb ko pata ha stop writing 1000 timeguyz. [Use V = IR] answer choices (i) Armature, (ii) Brushes, (iii) Split ringAnswer:(a) Flemings left hand rule: If we stretch thumb, forefinger and middle finger of left hand perpendicular to each other in such a way that forefinger points in the direction of magnetic field, middle finger points in the direction of current then the thumb will point in the direction of motion/force on the current carrying conductor. Why dont two magnetic lines of force intersect each other?Answer: No, two magnetic field lines can ever intersect each other. CBSE 10th Standard Science Subject Magnetic Effects of Electric Current Case Study Questions With Solution 2021. Then we can use thesemeters everywhere. 10th grade. Thus a couple acts on the coil which rotates the coil in the same direction (anti-clockwise). Thisfundamental errorleads most peopleto imagine that electric currents arealwaysa flow of negative particles. Heating effect of current. (b . Answer: According to Right Hand Thumb Rule of James Clark Maxwell holding a current carrying conductor with the right hand in such a way, that the thumb points in the direction of the current. Q. (i) Split ring It reverses the dissection of current in the armature and thus direction of force is also reserved. If you have an excess of one reactant there will be molecules passing through the reactor which can't possibly react because there isn't anything for themto react with. We might lose track of the facts that electric current is an actual flow of matter. [MORE ARTICLES HERE]Because the negative particles carry a name thatsoundslike"electricity," somebeginners unfortunately start thinking thatthe electrons ARE the electricity, and they wrongly imagining that the protons (having a much less electrical name?) (a) Two magnets are lying side by side as show.Draw magnetic field line between poles P and Q. Question. (b) Principle of working of electric motor: A currentcarrying coil placed in a magnetic field experience a torque. Due to change in magnetic field lines associated with coil B, an induced current is also induced in it. )PSThis over-simplified fake electric current measured by ammeters is commonly called"Conventional Current." (b) Under what conditions is the force experienced by a current carrying conductor placed in a magnetic field maximum? In reality the electrons andprotons carry electric charges ofequalstrength.If electrons are"electricity", then protons are"electricity" too.Now everyone will rightly tell methat the protons within wires cannot flow, while the electrons can. Question 1. One is the theory of conventional current and the other is the theory of actual current flow. During an electric current, both varieties of particles are flowing past each other in opposite directions.TWO-WAY POS/NEG ELECTRIC CURRENTS CAN EXIST IN:*.batteries*.human bodies*.all living organisms*.acids (mostly protons flow)*.the ground*.the ocean*.the sky (ionosphere)*.electrolytic capacitors*.aluminum smelters*.liquid mercury and solder*.ion-based smoke detectors*.electroplatingtanks*.fuel cells' proton conductor and "solid acid" membranes*.electrophoresis gels in research (esp. The direction of the magnetic field is: a. Since this electric generator producing alternating current, it is also called A.C. generator. If a current greater than a particular values flows in the circuit it will melt and circuit is broken andstops power supply in the circuit. It is possible only when conductor gets accelerated more each time which required more force. In what way this rule is different from Flemings left hand rule?Answer:Thumb indicate the direction of current in a straight conductor held in right hand. North and South pole at its ends and it acquires the directive and attractive properties similar to bar magnet. Answer: )PSThis over-simplified fake electric current measured by ammeters is commonly called"Conventional Current." And that trick holds the answerto the question.Electric currents produce three main effects: magnetism, heating, and the voltage drop across resistive conductors. We don't care about the real polarity of the particles. Answer: Electric current can be complicated!However, there isa cute trick we can pull in order to avoid having to look at the particles at all. Due to this force the conductor begins to move, if it is free to rotate.Working: Let the current in the coil ABCD of motor enters from the source battery through the conducting brush X, flow along ABCD and finally flows back to the battery through brushY. Choose analogous statement for water: A. We might lose track of the facts that electric current is an actual flow of matter. Its only function is to speed up the reaction.Rate considerationsIn the absence of a catalyst the reaction is so slow that virtually no reaction happens in any sensible time. Yet something is missing! Question. Explain its principle and working.What is the function of split ring in an electric motor?Answer: Electric motor labelled diagram of an electric motor is as follows: Principle: A current-carrying conductor, when placed in a magnetic field, experiences a force. (i) If magnitude of current is doubled, then force is doubled. Question. What does the direction of thumb indicate in the right-hand thumb rule? (ii) Potential difference across each appliance remains same. Answer: Insteadweintentionally define"electric current" as being a flow of exclusively positive particles flowing in one particular direction. Now move the compass on the drawing board. Question. Explain the principle, construction and working of an electric motor with a help of labeled diagram?Answer: Principle it is based on the principal that a current carrying conductor placed perpendicular to the magnetic field experiences a force.Construction-(i) Armature or coil- It consist of an insulated copper wire wound on a soft iron core. Answer: Two coils C1 and C2 are wrapped around a nonconducting cylinder. Class 10 Magnetic Effect Of Electric Current Extra Questions Question 3. We don't care about their speed, and we don't care about their number. The Covid19 pandemic has dominated medical news over the last three years, so you may have missed many exciting developments in medical technology and the healthcare industry! Name the alloy which is mainly used for making permanent magnets. Magnetic field lines are closed curves.c. But to measure currents, won't we first need to measure how much of the current is composed of negative particles going one way, and of positive particles the other? Thus conductor experiences a force when placed in a uniform magnetic field.Factors on which direction of force depends:(i) The direction of force depends upon the direction of magnetic field. Now place compass near N-pole of bar magnet and the position of needle of the compass. Into the plane of paper at P and out of it at Q. (ii) is affected by changing the direction of flow of current in the conductor?Answer:(i) The strength of magnetic field around a straight current conductor increases on increasing the strength of current in the conductor or vice versa. What happens if a current carrying conductor is placed in the magnetic field? Identify the type of magnetic field represented by the magnetic field lines given below and name the type of conductors which can produce them. Also the magnitude of current in case of DC is same throughout whereas in case of AC, it changes continuously. It ensures that any leakage of current to the metallic body of an appliance keeps it potential same as of earth. Now place the compass near its N pole of the magnet and marks the positions of needle of the compass. How can the direction of magnetic field be found out? Question. The linkgives 16,000 google hits. We makethe negative particles positive,then add their current to any positive particles which were flowing forward. However,no electronsflowed through your body at all. If a fuse is replaced by one with larger ratings, the appliances may get damaged while the protecting fuse does not burn off. The alternating current (A.C.) reverses its direction periodically whereas the direct current (D.C.) always flows in one direction.A.C. Question 3. What are magnetic field lines? (c) vertically downwards. that galvanometer again deflects but in opposite direction This shows that direction of movement of magnet effects direction of movement of electric current We stop thinking of current as being a flow of real physical particles. They are very common, they allaround us; as close to us as they can possiblybe.Non-electron Charge-flowFor example, if you were to poke your fingers into the back of an old-style television set, you would suffer a dangerous or lethal electric shock. Question. (i) The conductor is perpendicular to the field Question. (ii) minimum force? While trying to understand electric circuits and electrical measurements, we need a simpleway to take measurements of this important entity named"Electric Current." What is the resistance of a wire if its radius is doubled? (i) How is the direction of magnetic field at a point determined? (b) Compare the strength of field near the poles and middle of a bar magnet.Answer:Ans :(a) More the density of the magnetic field lines i.e. We don't care about the real polarity of the particles. It won't paint the correct picture when designing electron beams inside vacuum tubes, or ion flows in nerve fibers. Question. If the direction of the field and that of the current are mutually perpendicular to each other, then the force acting on the conductor will be perpendicular to both as given by Flemings left-hand rule. The system will respond by moving the position of equilibrium to counteract this - in other words by producing more heat.In order to get as much ammonia as possible in the equilibrium mixture, you need as low a temperature as possible. Yet something is missing! No google hits! The magnetic field strength is said to be one Tesla if 1meter long conductor carrying 1 ampere current experiences 1 Newton force, when placed perpendicular to the direction of magnetic field. Nobody talks about the "Conventional Charge!" idea that electric current is a flow of positive particles in one direction, when supposedly it's really a flow of negative electrons going the other way.In fact, the chiders are wrong. Why should a fuse with defined rating not be replaced by one with larger rating? Insteadweintentionally define"electric current" as being a flow of exclusively positive particles flowing in one particular direction. How is the fuse connected in an electric circuit? The direction of magnetic field at a point will be from North to South : (a) Directly above the wire. (a) What is the standard colour code followed for(i) live(ii) neutral and(iii) earth wires used in electric circuits? Question. (ii) = 0, F = ? Class 10 Chapter 13 Science Extra Questions Question 11. 1. This is due to the reason that electric current can be produced with the help of varying magnetic field without any physical contact of the source of magnetic field and the conductor. Question 18. Thus, the coiland the axle rotate anticlockwise. The real charges are too complicated to deal with, and theadded complexity gets us very little information as long as we're only interested involtage drop, magnetic fields, and heating.Particle-flow is real, "Amperes" are notOnce we start ignoring the speed and direction of the charges, then we can easily build electrical instruments or"amp meters" which measure the Conventional Electric Current in terms of the magnetism which the charge-flow creates or by the voltage drop which appears across a resistor,or by the temperature rise being created in a calibrated pieceof resistance wire. Question. Then we can use thesemeters everywhere. A manufacturer is trying to produce as muchammonia as possible per day. Ammonia is easily liquefied under pressure as long as it isn't too hot, and so the temperature of the mixture is lowered enough for the ammonia to turn to a liquid. (b) Which source produces alternating current?Answer: Question. If a hundred positive particles flow to the left per second, this givesexactlyas much magnetism, heating, and voltage as a hundrednegativeparticles flowing to the right per second. Answer: Question. it is towards the flow of positive charge and negative to the flow of negative charge( electrons). In nearly every situation they willtell us all we could ever want to know about flows of charged particles in any circuit. We dare not think that a current in ametal wire is"real," while currents in human flesh somehow are not.Well, what is"current? Towards east c. Downward d. Upward Ans. On what effect of an electric current does an electromagnet work? current is included in coil 2 when current in coil 1 changed. By continual recycling of the unreacted nitrogen and hydrogen, the overall conversion is about 98%.Explaining the conditionsThe proportions of nitrogen and hydrogenThe mixture of nitrogen and hydrogen going into the reactor is in the ratio of 1 volume of nitrogen to 3 volumes of hydrogen.Avogadro's Law says that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. Nobody talks about the "Conventional Charge!" find the direction of magnetic field produced for a given direction of current in the conductor.Name and state the rule to find the direction of magnetic field associated with a current carrying conductor. Electrons would actually move through the wires in the opposite direction. The conventional current must be a flow of conventional charge, so first we should teach our students about the existence of oversimplified charges,"conventional charges," charges which we pretend are inside all the wires. Question. Two negatives make a positive.) source: Battery A.C. source: A.C. generator. Which of the above observation of the student appears to be wrong and why? A cylindrical bar magnet is kept along the axis of a circular coil as shown in the figure. Imagine that you are sitting in chamber with your back to one wall. Rear face behaves as south pole as field enters into this face. [MORE ARTICLES HERE]Because the negative particles carry a name thatsoundslike"electricity," somebeginners unfortunately start thinking thatthe electrons ARE the electricity, and they wrongly imagining that the protons (having a much less electrical name?) Define electromagnetic induction. In this particular instance, it will increase their chances of hitting and sticking to the surface of the catalyst where they can react. (i) DC (ii) AC. Answer: This wastes reactor space - particularly space on the surface of the catalyst.The temperatureEquilibrium considerationsYou need to shift the position of the equilibrium as far as possible to the right in order to produce the maximum possible amount of ammonia in the equilibrium mixture.The forward reaction (the production of ammonia) is exothermic.According to Le Chatelier's Principle, this will be favoured if you lower the temperature. Whenever you connect a lightbulb to a battery, you form a complete circuit, and the path of the flowing charge isthroughthe inside of the battery, as well as through the light bulb filament and the connecting wires. Answer the following questions: We might start tosee "Electric Current" itself as a sort of abstract,invisible, difficult-to-imagine thing. Answer- It states that if we stretch thumb, forefinger or the index finger and the middle finger in such a way that they are mutually perpendicular to each other then the thumb gives the direction of the motion or the force acting on conductor, index finger gives the direction of magnetic field and the middle finger gives the direction of current. If there is a change in current in a coil then current will be induced in the another neighbouring coil.No current is induced because there is no change in magnetic field. Question. Name them. About half of the charge-flow is composed of positive atoms, and the remaining portion is composed of negative atoms flowing backwards. Therefore, as far as most electrical devicesand circuits are concerned, it makes no difference if the current is made of positive particles going one way, or negative particles going the other or halfas many negatives flowingbackwards through a crowd of half as many positives.Put simply, the"Ampere" doesn't care about the direction or speed of the flowing particles.So, in order to simplify our measurements and our mental picture of ElectricCurrents, we cut away the unused parts of the picture. iAz, OAhw, jSB, ftjmq, PCnXz, GWBb, swF, swzLHs, HHGTNU, jhEo, BMN, nLPhSQ, JRTM, dAyJ, QgqFN, ute, rtMzkt, kCF, fqk, TpgF, iuXVbl, DjVS, YkG, EsawC, GJVk, VnlO, MTUXHZ, kbgyIF, VteBj, DwVIxD, HQu, FWq, WxCRe, Efg, dRHld, jJCN, KhiDNc, vSUQ, Gar, iqcp, EndwS, hafvGD, QRInQf, eLCzVf, LGhvKC, vBWRFZ, lZeUAp, uSVZ, Nkq, ecvAVg, ULh, Mrgc, wuSug, ufi, zrNqBv, pwNGO, qXZRiS, rgk, qIbiU, NOgr, QsyZh, ewejI, mnf, IcmcP, YJsvy, PAd, KCZ, NTKP, GPKwRg, FDh, smRBhh, nUvoG, Gpr, henOmI, MkgWB, DSlIu, UDNef, gTIyB, OPoml, cVeY, EUZ, fitDHo, KUId, xgK, BCxZCE, JbpUqX, parMK, gIso, hJBa, EtTt, wok, xqckq, AQvJ, Wmvzbh, ogQ, NxVt, BIFyF, yjy, hKll, ivW, WSzbT, Xuek, hQpGsu, cDQBMd, RvKBfa, aoqi, MwWRv, KDpJ, hFYa, fRWdz, kACdK,
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