In a ballistic galvanometer, a charge of 100 μC gives a first swing of 25°. The charge required to cause first swing of 50° is

1.

In a ballistic galvanometer, a charge of 100 μC gives a first swing of 25°. The charge required to cause first swing of 50° is

[A].	200 μC
[B].	400 μC
[C].	50 μC
[D].	25 μC

Answer: Option B

Explanation:

swing is proportional to charge.

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