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A planar loop of irregular shape enclose...

A planar loop of irregular shape encloses an area of `7*5xx10^-4m^2`, and carries a current of `12A`. The sense of flow of current appears to be clockwise to an observer. What is the magnitude and direction of the magnetic moment vector associated with the current loop?

A

`9xx 10^(-3) A-m^(2)`

B

`4.5 xx 10^(-4) A-m^2`

C

`1.8 xx 10^(-4) A-m^(2)`

D

`9 xx 10^(-4)A-m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Given , area ,`A=7.xx10^(-4)m^(2)implies` currnet , i=1.2 A The magnetic dipole moment associated with the loop is M=iA
`1.2 xx 7.5 xx 10^(-4)=9 xx 10^(-4)A-m^(2)`
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