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Assertion: When radius of circular loop ...

Assertion: When radius of circular loop carrying current is doubled, its magnetic moment becomes four times.
Reason : magnetic moment depends on area of the loop.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

If both assertion and reason are true but reason is not the correct explanation of assertion.
Explanation : Magnetic moment M = IA = I `(pi r^(2))`
New magnetic moment M 1 = I `pi` (2r) 2 = 4 `pi` I r 2 = 4 M
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