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The pole strength of a bar magnet is 100...

The pole strength of a bar magnet is 100 units. It is cut into two pieces along a line paralle to its equator in such a way that the length of one piece is half the length of the other. What will be the ratio of the pole strength of the two pieces?

A

`1 : 1`

B

`1 : 2`

C

`1 : 3`

D

`5 : 2`

Text Solution

Verified by Experts

The correct Answer is:
A
The pole strength of the magnet is not affected by cutting a magnet along a line parallel to the equator.
`:.` The ratio of the pole strengths of the two pieces will be `1 : 1`.
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