A current I flows through a thin wire shaped as regular plygon of n sides which can be inscribed in a circle of radius R The

Question

A current I flows through a thin wire shaped as regular plygon of n sides which can be inscribed in a circle of radius R The magnetic field induction at the centre of polygon due to one side of the polygon is 2 HI 4TR tan n TR 11 A coil of inductive reactance 3 H1 2x R tan n 4 cos n 2TR 31 o has a resistance of 80 It is placed in series with a

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