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COMEDK2016PhysicsCurrent Electricity

If only 2 % of the main current is to be passed through a galvanometer of resistance G , then the resistance of shunt should be

Options

  1. AG / 50
  2. BG / 49
  3. C50 G
  4. D49 G

Correct answer

B. G / 49

Step-by-step solution

For shunt resistance connected to galvanometer, current is given by I_ g = ( S S+G ) I 2 100 I= ( S S+G ) I aligned & S+G &=50 S or & S &= G 49 aligned

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