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A straight horizontal conductor of lengt...

A straight horizontal conductor of length `L` meter and mass `m kg` carries a current `'I'` ampere. The minimum magnetic induction which must exist in the region to balance its weight

A

mg/iL

B

iL/mg

C

mgL/i

D

mL/ig

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A wire of length l meter carrying current i ampere is bent in form of circle. Magnetic moment is

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