Question

In the circuit with 6 V battery and resistors of 2Ω each, current is 2 A. Find potential at B with respect to A.

• A. 6 V
• B. -6 V
• C. 2 V
• D. -2 V

Hint:

Use Kirchhoff’s loop law and Ohm’s law \( V = IR \) to trace potential.

Answer 1

The Correct Option is C

Voltage drop = \( IR = 2 \cdot 2 = 4 \, \text{V} \) across first resistor. So,
\( V_B = V_A + 6 - 4 = 2 \, \text{V} \)