Riya wanted to light a bulb using a cell, wires, and a switch. She connected all the components, but the bulb did not glow. Her teacher checked the circuit and found that one wire was loose and the switch was open.

Why did the bulb not glow?

Model Answer

The bulb did not glow because the electric circuit was incomplete. This incompleteness was caused by two factors: one wire being loose, which created a break in the path, and the switch being open, which also interrupted the flow of current.

Explanation

The bulb did not glow because the circuit was incomplete due to a loose wire and an open switch, preventing current flow.