The discharge of a capacitor through a ballistic galvanometer produces a damped

Question

The discharge of a capacitor through a ballistic galvanometer produces a damped frequency of 0.125 Hz and successive swings of 120, 96 and 76.8 mm. The logarithmic decrement is?

Options:

A . 0.225

B . 0.565

C . 0.484

D . 0.7887

Answer: Option A
Answer: (a).0.225

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