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JEE Main202131 Aug 2021Morning ShiftPhysicsCurrent ElectricityActual

Consider a galvanometer shunted with 5 Ω resistance and 2 % of current passes through it. What is the resistance of the given galvanometer?

Options

  1. A245   Ω
  2. B344   Ω
  3. C300   Ω
  4. D226   Ω

Correct answer

A. 245   Ω

Step-by-step solution

I G = 2 100 × I (Given) 0 . 98   I   ×   5   =   0 . 02   ×   R G R G   =   245   Ω

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