Induced Current and Magnetic Flux – Rankers Physics

Faraday's Law of Electromagnetic Induction: Practice Problem & Solution

Assertion (A): Only a change of magnetic flux with time, will maintain an induced current in the coil. Reason (R): The presence of a large magnetic flux will maintain an induced current in the coil.  
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 Explained:

To solve this problem, we apply the core principles of Faraday's Law of Electromagnetic Induction. Understanding the underlying formula is key to arriving at the correct answer below:

Assertion (A) is true based on Faraday's Law, which states that induced current is generated only by a change in magnetic flux. Reason (R) is false because a constant magnetic flux, regardless of its magnitude, does not induce a current.

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