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Magnetic induction at the centre of a ci...

Magnetic induction at the centre of a circular loop of area `pi` square meter is `0.1` tesla . The magnetic moment of the loop is `(mu_(0)` is permeability of air `)`

A

`(0.1pi)/(mu_(0))`

B

`(0.2pi)/(mu_(0))`

C

`(0.3 pi)/(mu_(0))`

D

`(0.4pi)/(mu_(0))`

Text Solution

Verified by Experts

The correct Answer is:
2
`M= i nA ` and `i=(q)/(T)`
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