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1m long wire is folded in form of a circ...

1m long wire is folded in form of a circular coil and 100 mA electric current is flowing in it, then magnetic field at a point 1m away from its centre on its axis

A

`(10^(-5))/(4pi)T`

B

`(10^(-8))/(2pi)T`

C

`(10^(-5))/(2pi)T`

D

`(10^(-8))/(4pi)T`

Text Solution

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The correct Answer is:
B
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