Question

Why is the coil of a ballistic galvanometer wound on a non- metallic former?

a.

To minimise damping when high resistance is connected in series

b.

To maximise damping when high resistance is connected in series

c.

To minimise damping when high resistance is connected in parallel

d.

To maximise damping when high resistance is connected in parallel

Answer: (a).To minimise damping when high resistance is connected in series

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Q. Why is the coil of a ballistic galvanometer wound on a non- metallic former?

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