Question

The potential difference (V_A - V_B) between the points A and B in the given figure is ______.

विकल्प

• +9 V

• -3 V

• +3 V

• +6 V

Answer 1

The potential difference (V_A - V_B) between the points A and B in the given figure is + 9V.

Explanation: 

By Kirchhoff's voltage law.

V_A - (2 x 2) - (3) - (2 x 1) - V_B = 0

∴ V_A - 4 - 3 - 2 - V_B = 0

∴ V_A - V_B = + 9V