In the circuit shown in the figure, if potential at point

Home » Electricity and Magnetism » Current Electricity » Question

In the circuit shown in the figure, if potential at point A is taken to be zero, the potential at point B is

1. –1V
2. + 2V
3. –2V
4. + 1V

Correct Option: D

Current from D to C = 1A
∴ V_D – V_C = 2 × 1 = 2V
V_A = 0
∴ V_C = 1V,
∴ V_D – VC = 2
⇒ V_D – 1 = 2
∴ V_D = 3V
∴ V_D – V_B = 2
∴ 3 – V_B = 2 ∴ V_B = 1V