In this article you will get the solution of the questions from the chapter Moving Charges and Magnetism.
Q – 4.1: A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil?
Ans: Number of turns on the circular coil, n = 100 Radius of each turn, r = 8.0 cm = 0.08 m
Current flowing in the coil, I = 0.4 A, Magnitude of the magnetic field at the centre of the coil is given by the relation,
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