Two insulated circular loop "A" and "B" ...

Two insulated circular loop "A" and "B" of radius ' "a" ' carrying a current of ' "I" ' in the anti clockwise direction as shown in the figure.The magnitude of the magnetic induction at the centre will be

`(mu_(0)I)/(2" a ")`

`(mu_(0)I)/(sqrt2" a ")`

`(2mu_(0)I)/(" a ")`

`(sqrt2mu_(0)I)/(" a ")`

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