Question

Nayana has set up an electric circuit using some connecting copper wires, a battery, a switch and a bulb that she has taken from a torch light. But after connecting the equipments, the bulb is not glowing. What can be the reason(s) for this?

• A. Torch light bulbs cannot be used for this experiment.
• B. The battery is dead.
• C. The circuit which should be closed is open instead.
• D. The bulb's filament is broken.

Answer 1

Answer: (B), (C), (D)

The bulb's filament is broken.

A simple electric circuit can be constructed using copper wires, a battery, a switch and an electric bulb. Few possible reasons why Nayana has been failing to make the bulb glow are:

• The battery is an old one, hence it might be dead.
• The circuit is open.
• The connecting wires are not connected properly.
• The bulb is fused.