The deflection in moving coil galvanometer falls from 25 divisions to 5 division when a shunt of 24 Ω is…

The deflection in moving coil galvanometer falls from 25 divisions to 5 division when a shunt of 24 Ω is applied. The resistance of galvanometer coil will be:
  1. 12 Ω
  2. 96 Ω
  3. 48 Ω
  4. 100 Ω

Solution

Let x represents the current per division though the galvanometer.

After applying shunt

Now, if G is the galvanometer resistance, from the above figure, it can be written that

5x×G=20x×24G=4×24G=96 Ω

Asked in: JEE Main 2024 (29 Jan Shift 1)

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