A current I enters a uniform circular coil of radius R, branches into two parts and then recombines as shown in the circuit diagram. The resultant magnetic field at the centre of the coil is :

Options

A. zero
B. `(mu_(0)I)/(2R)`
C. `3/4((mu_(0)I)/(2R))`
D. `1/4((mu_(0)I)/(2R))`

Answer

A

Explanation

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