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A permanent magnet in the shape of a thi...

A permanent magnet in the shape of a thin cylinder of length 50 cm has intensity of magnetization `10^(6)Am^(-1)`. The magnetization current is

A

`5xx10^(5)A`

B

`6xx10^(5)A`

C

`5xx10^(4)A`

D

`6xx10^(5)A`

Text Solution

Verified by Experts

The correct Answer is:
A
`"Here", l=50cm, 0.5cm, M=10^(6)Am^(-1)`
`"As", M=("magnetisation current"(I_(M)))/(l("lengths"))`
`"Then", I_(M)=Mxxl=10^(6)xx0.5=5xx10^(5)A`
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