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A current of 10A is passing through a lo...

A current of `10A` is passing through a long wire which has semicircular loop of the radius `20cm` as shown in the figure. Magnetic field produced at the centre of the loop is

A

`10pi mu T`

B

`5 pi mu T`

C

`4 pi mu T`

D

`2 pi mu T`

Text Solution

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The correct Answer is:
B
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