General Science • PhysicsHard
Assertion (A): The magnetic flux linked with a closed coil changes when a bar magnet is moved towards it, inducing an electromotive force in the coil. Reason (R): According to Faraday law of electromagnetic induction, any change in the magnetic environment of a coil causes a voltage generation proportional to the rate of flux change.
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion✓ Correct Answer
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Assertion is false but Reason is true
💡 Solution & Explanation
Both the assertion and reason are correct, and the reason correctly explains why the electromotive force is induced in the coil as stated by Faraday law of electromagnetic induction. Movement of the bar magnet alters the magnetic field lines passing through the cross-sectional area of the coil, directly changing the magnetic flux linkage over time. Lenz law further determines the polarity of the induced electromotive force to oppose the very change producing it.
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