If a bar magnet is cut into two equal parts along the magnetic axis, then the magnetic moment becomes ________ of the original value.

half

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twice

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thrice

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None of the above

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Solution

The correct option is A half
The pole strength of each piece when a bar magnet is cut into two equal halves perpendicular to its length is the same as the pole strength of the original bar magnet. However, the magnetic moment of each piece is half the magneticmoment of the original bar magnet.

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If a bar magnet is cut into two equal parts along the magnetic axis, then the magnetic moment becomes ________ of the original value.

The correct option is A halfThe pole strength of each piece when a bar magnet is cut into two equal halves perpendicular to its length is the same as the pole strength of the original bar magnet. However, the magnetic moment of each piece is half the magneticmoment of the original bar magnet.

The correct option is A half
The pole strength of each piece when a bar magnet is cut into two equal halves perpendicular to its length is the same as the pole strength of the original bar magnet. However, the magnetic moment of each piece is half the magneticmoment of the original bar magnet.