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A bar magnet of magnetic moment M is cut...

A bar magnet of magnetic moment M is cut into two parts of equal length/breadths.The magnetic moment of each part will be

A

M

B

2M

C

Zero

D

0.5 M

Text Solution

Verified by Experts

The correct Answer is:
D

Magnetic moment = Pole strength `xx` length
`M prop A` (for constant pole strength)
`therefore M' = M//2 = 0.5 M`
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