The movable wire is moved to the right causing an anticlockwise induced current. The direction of magnetic induction in the region P.
Correct answer: D. Points down into the paper
- A. Points to the right
- B. Points to the left
- C. Points up the paper
- D. Points down into the paper
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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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