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MHT CET202012 Oct 2020Morning ShiftPhysicsCurrent ElectricityActual

The deflection in a moving coil galvanometer is reduced to half when it is shunted with ' X^ coil. The relation between ' X ^ and resistance of galvanometer ' G ^ is

Options

  1. A2 X=G
  2. B4 X=G
  3. CX=2 G
  4. DX=G

Correct answer

D. X=G

Step-by-step solution

I _ G G = I _ x X The total current gets equally divided between the galvanometer and the shunt. I _ G = I _ X

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