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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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RELATED QUESTIONS
Draw a labelled diagram of a moving coil galvanometer. Describe briefly its principle and working.
Two moving coil meters, M1 and M2 have the following particulars:
R1 = 10 Ω, N1 = 30,
A1 = 3.6 × 10–3 m2, B1 = 0.25 T
R2 = 14 Ω, N2 = 42,
A2 = 1.8 × 10–3 m2, B2 = 0.50 T
(The spring constants are identical for the two meters.)
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