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MHT CET202120 Sep 2021Morning ShiftPhysicsCurrent ElectricityActual

A galvanometer has resistance ' G ' and ' I_g ' is current flowing through it which produces full scale deflection. ' S₁ ' is the value of shunt which converts it into an ammeter of range 0 to ' 3 I ' and ' S₂ ' is the shunt value which converts it into an ammeter of range 0 to ' 4 I ', the ratio S₂: S₁ is

Options

  1. A4 3
  2. B3 I-I_g 4 I-I_g
  3. C3 4
  4. D4 I-I_g 3 I-I_g

Correct answer

B. 3 I-I_g 4 I-I_g

Step-by-step solution

aligned & s₁= I_g G 3 I-I_g , s₂= I_g G 4 I-I_g & s₂ s₁ = 3 I-I_g 4 I-I_g aligned

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