Questions
The magnetic moment of a bar magnet is 3.6x10-3 A.m2. Its pole strength is 120 milli amp. m. Its magnetic length is
detailed solution
Correct option is A
2l = MmTalk to our academic expert!
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A long magnetic needle of length 2L, magnetic moment M and pole strength m units is broken into two pieces at the middle. The magnetic moment and pole strength of each piece will be
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