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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

`2pir=L implies r=L/(2pi)`
`:. `Area of the circle `=pir^2=(piL^2)/(4pi)`
Magnetic moment of a loop in which current i flows is given by
`M=iA=(iL^2)/(4pi)`
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