A wire of length L metre , carrying a c...

A wire of length `L metre ` , carrying a current `I `ampere is bent in the form of a circle . The magnitude of its magnetic moment is …………. ` MKS units ` .

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The correct Answer is:

`(L^(2)i)/(4pi)`

`(L^(2)i)/(4pi)`
Ler R the radius of circle. Then `: 2piR=L ` or `R=L/(2pi)` , `M=iA=I pi R^(2)=(L^(2)i)/(4pi)`

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