Question

Shasi has set up an electric circuit using some connecting copper wire, a battery, a switch and a bulb. But after connecting the components, the bulb is not glowing. What can be the reason(s) for this?
1. Filament of bulb is broken
2. The battery is dead
3. The circuit is open instead of closed

• A. 1 only
• B. 1 and 3 only
• C. 2 and 3 only
• D. 1, 2 and 3

Answer 1

The correct option is D 1, 2 and 3

Few possible reasons why Shasi has been failing to make the bulb glow are:
1. No source of electricity: The battery is an old one, hence it might be dead. Dead battery can not supply electricity to the circuit. Without electricity the bulb will not glow.
2. Open circuit: The connecting wires are not connected properly resulting in an open circuit. In an open circuit, no current flows. Hence, the bulb will not glow.
3. Fused bulb: If the filament of the bulb is broken, it will not glow.