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Manipal MET2017PhysicsCurrent Electricity

A voltmeter has resistance of G ohms and range V volts. The value of resistance used in series to convert it into a voltmeter of range n V volts is

Options

  1. An G
  2. B(n-1) G
  3. CG n
  4. DG (n-1)

Correct answer

B. (n-1) G

Step-by-step solution

Suppose resistance R is connected in series with voltmeter as shown. By Ohm's law R =(n-1) G where i_g= V G

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