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AIIMS2017PhysicsCurrent Electricity

The measurement of voltmeter in the following circuit is

Options

  1. A2.25 ~V
  2. B4.25 ~V
  3. C2.75 ~V
  4. D6.25 ~V

Correct answer

A. 2.25 ~V

Step-by-step solution

Resistance of voltmeter and 60 are in parallel. Equivalent resistance = 60 40 60+40 = 60 40 100 =24 For the whole circuit, current I= 6 ~V (40+24) = 6 64 = 3 32 ~A The voltmeter reads potential difference across 60 . aligned & Voltmeter reading =I R_ e q & = 3 32 24= 9 4 ~V =2.25 ~V aligned

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