Question

The bulb in the circuit shown below does not glow.

Which of the following labelled parts is responsible for this?

• A. 4
• B. 2
• C. 3
• D. 1

Answer 1

The correct option is C

3

All electric cells have two terminals, positive and negative terminal.The current flows from the positive terminal to negative terminal. If similar terminals of identical cells (i.e., positive and positive in this case) in the circuit are connected together, no electric current flows in the circuit. Hence, the part responsible here is labelled by the number 3.