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The pole strength of a bar magnet is 300...

The pole strength of a bar magnet is 300 units. It is cut into two pieces A and B along a line parallel to its axis in such a way that the breadth of A is double the breadth of B. Then the pole strengths of A and B are in the ratio

A

`1 : 1`

B

`1 : 2`

C

`2 : 1`

D

`3 : 1`

Text Solution

Verified by Experts

The correct Answer is:
C

Pole strength is also divided in the ratio of `2 : 1`.
`:. m_(A)/m_(B)=200/100=2/1`
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