Question

If the reading of galvanometer is zero then emf (E) of cell is

• A. 3V
• B. 2 V
• C. 5 V
• D. 10 V

Answer 1

Answer: (C)

5 V

Answer 2

No current flows through the galvanometer if V_C – V_D = V_A – V_B

E = IR ⇒ E = 1 × 5 ⇒ E = 5V