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The moment of a magnet (15 cm xx 2 cm xx...

The moment of a magnet `(15 cm xx 2 cm xx 1 cm)` is 1.2 Am^2 .What is its intensity of ,magnetisation?

A

`3 xx 10^4 A/m`

B

`4 xx 10^4 A/m`

C

`3 xx 10^-4 A/m`

D

`4 xx 10^-4 A/m`

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