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The magnetic moment of a magnet (15cmxx2...

The magnetic moment of a magnet `(15cmxx2cmxx1cm) is 1.2A-m^(2)`. Calculate its intensity of magnetisation

A

`3xx10^(4) A//m`

B

`4xx 10^(4) A//m`

C

`3 xx 10^(-4) A//m`

D

`4 xx 10^(-4) A//m`

Text Solution

Verified by Experts

The correct Answer is:
B
`M=1.2Am^(2),I=?`
`I=(M)/(V)=(1.2)/(15xx2xx1xx10^(-6))`
`=4xx10^(4)A//m`
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