A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field
Channel: Ritesh Dahiya (RD Sir) (KDC) Kota Doubt Counter
Date: 2020-08-27

A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the center of the loop is B. It is then bent into a circular coil of n turns. The magnetic field at the center of this coil of n turns will be:
(a) nB   (b)  n2B   (c) 2nB   (d) 2n2B

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