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JEE Main201911 Jan 2019Evening ShiftPhysicsCurrent ElectricityActual

In the circuit shown, the potential difference between A and B is

Options

  1. A1 ~V
  2. B2 ~V
  3. C3 V
  4. D6 ~V

Correct answer

B. 2 ~V

Step-by-step solution

Given, E₁=1 ~V , E ₂=2 ~V , E ₃=3 ~V , r ₁=1 r ₂=1 and r ₃=1 V _ AB = V _ CD = E ₁ r ₁ + E ₂ r ₂ + E ₃ r ₃ 1 r ₁ + 1 r ₂ + 1 r ₃ = 1 1 1 + 1 1 + 1 1 + 3 1 = 6 3 =2 ~V

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