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A straight wire is first bent into a cir...

A straight wire is first bent into a circle of radius 'r' and then into a square of side 'x' each of oneturn. If currents flowing through them are in the ratio 4 : 5, the ratio of their effective magnetic moments is

A

`(pi)/(8)`

B

`(12)/(pi)`

C

`(16)/(5 pi)`

D

`(8)/( 5 pi)`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (MOVING CHANGES & MEGNETISM)
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