Question

The potential difference between points a & b-

• A. 5 V
• B. 9 V
• C. 10 V
• D. 13 V

Answer 1

Answer: (D)

13 V

Answer 2

V_x – V_a = $\frac { 30 \times 1.5 } { 2.5 }$ = 18

V_y – V_b = $\frac { 30 \times 0.5 } { 3 }$ = 5

V_a – V_b = –13

|V_a – V_b| = 13 volts