Induced Current Direction – Rankers Physics
Topic: Electromagnetic Induction
Subtopic: Lenz Law

Induced Current Direction

Assertion (A): If a coil carrying current in counter clockwise direction moves towards another stationary coil in the same plane, current induced in stationary coil will be counter clock wise.
Reason (R): Mutual induction between coils is independent of direction of current.
 
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Solution:

Assertion (A) is false: A counter-clockwise current in the moving coil creates a magnetic field pointing out of the page. As it moves towards the stationary coil, the outward flux through the stationary coil increases. By Lenz's law, the induced current will oppose this change by creating an inward magnetic field, which requires a clockwise current.


Reason (R) is true: Mutual inductance \(M\) is a geometric property of the coils and is independent of the direction of current. Since (A) is false and (R) is true, none of the provided options accurately describe the situation.

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