Magnetic Flux and Electric Field – Rankers Physics

Magnetic Flux: Practice Problem & Solution

Assertion (A): A changing magnetic flux induces an electric field. Reason (R): An inductor always tends to keep the flux constant.  
(1) Both (A) & (R) are true and the (R) is the correct explanation of the (A)
(2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(3) (A) is true but (R) is false
(4) Both (A) and (R) are false

Solution Explained:

To solve this problem, we apply the core principles of Magnetic Flux. Understanding the underlying formula is key to arriving at the correct answer below:

Faraday's Law states a changing magnetic flux induces an electric field. Inductors oppose change in flux, but don't keep it constant. Hence, Assertion is true and Reason is false.

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