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Magnetic induction at the center of a ci...

Magnetic induction at the center of a circular loop carrying a current is `'B'` . If `'A'` is the area of the coil, the magnetic dipole moment of the loop is

A

`(BA^(2))/(mu_(0)pi)`

B

`(BA(sqrt(A)))/(mu_(0))`

C

`(BA(sqrt(A)))/(mu_(0)pi)`

D

`(BA)/(mu_(0))sqrt((A)/(pi))`

Text Solution

Verified by Experts

The correct Answer is:
4
`B=(mu_(0)i)/(2r)`
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