A bar magnet of magnetic moment 10Am^(2)...

A bar magnet of magnetic moment `10Am^(2)` has a cross sectional area of `2.5xx10^(-4)m^(2)` . If the intensity of magnetisation of the magnet is `10^(6)A//m`, then the length of magnet is

0.4 m

0.04 cm

0.04m

40cm

Text Solution

Verified by Experts

The correct Answer is:

`(2l)=M/(IxxA)`

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NARAYNA-MAGNETISM AND MATTER-EXERCISE - 1 (H.W)

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