Question

Magnetic fields at two points on the axis of a circular coil
at a distance of 0.05 m and 0.2 m from the centre are
the ratio 8: 1. The radius of the coil is
(a) 1.0 m
(b) 0.1 m
(c) 0.15 m
(d) 0.2 m​

Answer 1

Answer:

A) IS the correct answer to do question

Explanation:

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