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Question 9: NCERT Solutions for 12th Class Physics: Chapter 5-Magnetism and Matter

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Question 9: NCERT Solutions for 12th Class Physics: Chapter 5-Magnetism and Matter

A circular coil of 16 turns and radius 10 cm carrying a current of 0.75 A rests with its plane normal to an external field of magnitude 5.0 × 10-2 T.The coil is free to turn about an a×is in its plane perpendicular to the field direction. When the coil is turned slightly and released, it oscillates about its stable equilibrium with a frequency of 2.0 s-1. What is the moment of inertia of the coil about its axis of rotation?

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