Show that lenz law is in accordance with the law of conservation of energy
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Lenzs law states that The direction of induced is such that it tends to produce a current which opposes the changethat causes the induction.
Conservation of energy : The energy is converted into electrical energy and then dissipated as heat in the loop by Joule heating produced by the induced current .
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Lenzs law states that The direction of induced is such that it tends to produce a current which opposes the changethat causes the induction.
Conservation of energy : The energy is converted into electrical energy and then dissipated as heat in the loop by Joule heating produced by the induced current .
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Anushkasampa123:
Ok
I am seeing the link
The points are almost the same but I wrote it differently ....in my previous answer...
I am sorry for that ....next time i will check my answer before writing whether my answer is the same one in the net and the points are same or not...
Sorry junaid bhaiyya
It’s ok.
Are u bhaiyya or sissy? ?
Bro
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Answered by
173
LENZ'S LAW : According to Lenz's law, the polarity of the induced e.m.f. is such that it opposes the change in magnetic flux responsible for its production.
LENZ'S LAW IN ACCORDANCE WITH THE LAW OF CONSERVATION OF ENERGY :
For example, in the experimental verification of Lenz's law, when N-pole of magnet is moved towards the coil, the upper face of coil acquires north polarity.
Therefore, work has to be done against the force of repulsion, in bringing the magnet closer to the coil.
Similarly, when N pole of magnet is moved away, south polarity develops on the upper face of the coil.
Therefore, work had to be done against the force of attraction, in taking the magnet away from the coil.
IT IS THE MECHANICAL WORK DONE IN MOVING THE MAGNET WITH RESPECT TO THE COIL THAT CHANGES INTO ELECTRICAL ENERGY PRODUCING INDUCED CURRENT.
THUS, ENERGY IS BEING TRANSFORMED ONLY.
When we do not move the magnet, work done is zero. Therefore, induced current is also not produced.
HENCE LENZ'S LAW OBEYS THE PRINCIPLE OF ENERGY CONSERVATION.
Conversely, Lenz's law can be treated as a consequence of the principle of energy conservation.
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HOPE HELPS!!!
LENZ'S LAW IN ACCORDANCE WITH THE LAW OF CONSERVATION OF ENERGY :
For example, in the experimental verification of Lenz's law, when N-pole of magnet is moved towards the coil, the upper face of coil acquires north polarity.
Therefore, work has to be done against the force of repulsion, in bringing the magnet closer to the coil.
Similarly, when N pole of magnet is moved away, south polarity develops on the upper face of the coil.
Therefore, work had to be done against the force of attraction, in taking the magnet away from the coil.
IT IS THE MECHANICAL WORK DONE IN MOVING THE MAGNET WITH RESPECT TO THE COIL THAT CHANGES INTO ELECTRICAL ENERGY PRODUCING INDUCED CURRENT.
THUS, ENERGY IS BEING TRANSFORMED ONLY.
When we do not move the magnet, work done is zero. Therefore, induced current is also not produced.
HENCE LENZ'S LAW OBEYS THE PRINCIPLE OF ENERGY CONSERVATION.
Conversely, Lenz's law can be treated as a consequence of the principle of energy conservation.
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HOPE HELPS!!!
Awesome explanation
Thnx bro
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You nailed it! Awesome answer! ^_-
thnx bro!!
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