Magnetism Question 159

Question: If a magnet of pole strength m is divided into four parts such that the length and width of each part is half that of initial one, then the pole strength of each part will be

Options:

A) $ m/4 $

B) $ m/2 $

C) $ m/8 $

D) $ 4m $

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Answer:

Correct Answer: B

Solution:

For each part $ {m}’=\frac{m}{2} $