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A long wire carrying a steady current is...

A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. it is then bent into a circular coil of n turns. The magnetic field at the centre of this coil of n turns will be

A

`(B)/(n)`

B

nB

C

`nB^(2)`

D

`n^(2)B`

Text Solution

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The correct Answer is:
D
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