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Magnetism

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23 Jan 2008 13:49:30 IST

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a steel wire of lenght l has a magnetic moment m .it is bent into L shape from the middle the new magnetic moment is

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Pratyush Pande

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Joined: 2 Jan 2008

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23 Jan 2008 14:38:42 IST

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mag moment = pole strngth x length

hence pole strngth = M/L

the new distance b/w the poles is 2^1/2 L

so new mag moment = 2^1/2M

Krishna Gopal Singh

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Joined: 29 Dec 2006

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23 Jan 2008 17:13:52 IST

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The new distance will be L/sqrt(2) So new moment is M/sqrt(2)

drishti sharma

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27 Jan 2008 04:00:32 IST

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as M=NIA so when it is folded up then A'=A/4 and N' =2N and I will remain the same . so M'=M/2 . I hope my approach was right .

drishti sharma

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27 Jan 2008 04:01:35 IST

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