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A wire of length L metre carrying a curr...

A wire of length L metre carrying a current I ampere is bent in the form of circle. Its magnitude of magnetic moment will be:

A

`(4 pil )/(l ^(2))`

B

`(2H^(2))/(pi)`

C

`(l l^(2))/(pi)`

D

`(l l^(2))/(4pi)`

Text Solution

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-MAGNETISM AND MATTER -ASSIGNMENT (SECTION B)
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  9. Area of B-H curve measures the energy loss

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  10. A wire of length L metre carrying a current I ampere is bent in the fo...

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  11. Bohr magnetonis given by (symbols have their usual meanings)

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  12. The unit of magnetic susceptiblity is

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  13. One weber is equal to

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  14. If number of turns of cross-section of the coil of a tangent galvanome...

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  16. If declination at a place is known to be 15 ^(@) E. And a compass need...

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