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A circular coil of 300 turns and diamete...

A circular coil of `300` turns and diameter `14cm` carries a current of `15A`. What is the magnitude of magnetic moment linked with the loop?

Text Solution

Verified by Experts

The correct Answer is:
`69.3`
Here ,N = 300 , d= 14 cm = `14 xx 10^(-2)` m
I = 15 A,M = ?
`M = NIA = NI ((pid^(2))/4)`
` 300 xx 15 xx 22/7 ((14xx10^(-2))^(2))/4=69.3 " J "T^(-1)`
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