When we say that Lenz law refers to induced currents, it means that we can apply it directly to:
Correct answer: B. Closed conducting loop
- A. Open circuits
- B. Closed conducting loop
- C. Every circuits
- D. None of these
Explanation
When we say that Lenz's law refers to induced currents, it means that we can apply it directly to Closed conducting loops.Lenz's law states that the direction of the induced electromotive force (emf) and the induced current in a conductor or loop will be such that they oppose the change in magnetic flux that produced them. This law applies specifically to closed conducting loops or circuits where a current can flow.
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About Electromagnetic Induction
Changing magnetic flux induces an emf according to Faraday's law, while Lenz's law gives the direction that opposes the change producing it. Transformers apply induction between coils to step alternating voltage up or down, with turns ratio, current transformation and energy losses determining practical operation.
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