| Assertion: Acceleration of a magnet failing through a copper ring decreases. |
| Reason: The induced current produced in a circuit always flow in such direction that it opposes the change or the cause produced it. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) if assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: A
Solution :
When the magnet falls, the magnetic flux through the copper ring increases and induced e.m.f. is produced in the ring. The induced e.m.f. so produced, opposes the motion of falling magnet. Therefore, the acceleration of the falling magnet will be less than that due to gravity.
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