Magnetic Induction at the centre of circular coil of radius r carrying current I is-
Magnetic Induction at the centre of circular coil of radius r carrying current I is-
(A) \(\frac{\mu oI}{2R}\)
(B) \(\frac{\mu I^2}{R}\)
(C) \(\frac{\mu oI}{R^2}\)
(D) \(\frac{\mu oI}{R}\)
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