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MHT CET20239 May 2023Evening ShiftPhysicsCurrent ElectricityActual

A galvanometer of resistance 20 gives a deflection of 5 divisions when 1 ~mA current flows through it. The galvanometer scale has 50 divisions. To convert the galvanometer into a voltmeter of range 25 volt, we should connect a resistance of

Options

  1. A1240 in series.
  2. B2480 in series.
  3. C2480 in parallel.
  4. D20 in parallel.

Correct answer

B. 2480 in series.

Step-by-step solution

aligned R & = V I _ g - G & Here, I _ g = 50 5 =10 ~mA R & = 25 10 10⁻³ -20 & =2480 in series aligned

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