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JEE Main2015PhysicsCurrent ElectricityActual

In the electric network shown, when no current flows through the 4 Ω resistor in the arm EB, the potential difference between the points A and D will be:

Options

  1. A5   V
  2. B3   V
  3. C4   V
  4. D6   V

Correct answer

A. 5   V

Step-by-step solution

Assuming potential at B = 0, then w.r.t. B the potential of other points are as shown in figure then So, V A = 9   V and V D = 4   V ∴ V A - V D = 9 - 4 = 5   V

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