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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 ` .

Text Solution

Verified by Experts

If r is radius of the circle, then `2pir=L` or `r=(L)/(2pi)`
`M=IA=Ipir^2=Ipi((L)/(2pi))^2=(IL^2)/(4pi)`
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