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A circular coil of diameter 7 cm has 24 ...

A circular coil of diameter 7 cm has 24 turns of wire, carrying current of 0.75 A. The magnetic moment of the coil is

A

`6.9xx10^(-2)A-m^(2)`

B

`2.3xx10^(-2)A-m^(2)`

C

`10^(-2)A-m^(2)`

D

`10^(-3)A-m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
AS `M=NiA=24xx0.75xx3.14xx(3.5xx10^(-2))^(2)`
`impliesM-=6.9xx10^(-2)A-m^(2)`
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