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An infinitely long conductor is bent int...

An infinitely long conductor is bent into a circle as shown in figure. It carries a current I ampere and the radius of loop is R metre. The magnetic induction at the centre of loop is

A

Zero

B

infinity

C

`mu_(0)/4pi 2i/r (pi +1)Tesla`

D

`mu_(0)/4pi 2i/r (pi -1)Tesla`

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