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Equal current...

Question

Equal current I flows in two segments of a circular loop in the direction. Radius of the loop is r. The magnitude of magnetic field induction at the centre of the loop O is :

A

zero

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B

\frac{μ_{0} I θ}{4 x r}

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C

\frac{μ_{0} I}{4 x r} (π - θ)

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D

\frac{μ_{0} I}{2 x r} (π - θ)

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