Picture based question:
Observe the given picture. Which material, when connected between points \(A\) and \(B\), will prevent the lamp from glowing?
The lamp will not glow if an is connected between points \(A\) and \(B\). It does not allow the flow of , so the circuit remains incomplete. Materials like rubber, plastic, and wood are examples of insulators. Since the current cannot pass through these materials, the bulb will not light up. Therefore, using an insulator prevents the circuit from becoming .