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Question
A bar magnet is cut into two equal haves by a plane parallel to the magnetic axis. Of the following physical quantities the one which remains unchanged is
A bar magnet is cut into two equal haves by a plane parallel to the magnetic axis. Of the following physical quantities the one which remains unchanged is
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Solution
The correct option is C intensity of magnetisation
For each half M=m×2l becomes half and volume V=a×2l also becomes half therefore, I=M/V, remains constant.
For each half M=m×2l becomes half and volume V=a×2l also becomes half therefore, I=M/V, remains constant.
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