Question

If the switch S is closed in the circuit as shown in the figure, then current passed through it is-

• A. 4.5 A
• B. 6.0 A
• C. 3.0 A
• D. Zero

Answer 1

Answer: (A)

4.5 A

Answer 2

Equivalent circuit

Convert two parallel cells in single cell

I = $\frac { 15 } { \frac { 4 } { 3 } + 2 }$ = 4.5 A