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Why Are the Pole Pieces of a Horseshoe Magnet in a Moving Coil Galvanometer Made Cylinder in Shape?

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Question

Why are the pole pieces of a horseshoe magnet in a moving coil galvanometer made cylinder in shape? 

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Solution

Pole pieces of a horseshoe magnet in a moving coil galvanometer made cylinder in shape so that a uniform radial magnetic field is created. 

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2018-2019 (March) Set 1

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