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COMEDK2016PhysicsCurrent Electricity

Ideal voltmeter connected as shown reads

Options

  1. A16 ~V
  2. B12 ~V
  3. C4 ~V
  4. D8 ~V

Correct answer

D. 8 ~V

Step-by-step solution

Here, 6 and 12 2 resistors are in parallel combination, so their equivalent resistance, R_ eq = 6 12 6+12 = 72 18 =4 Now, R_ eq and 4 are in series, so total resistance, R_ t =4+4=8 Emf of battery, E=16 ~V Reading of voltmeter, V^ = 4 R_ t E= 4 16 8 =8 ~V

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