Question

1. You switch off a glowing electric bulb in an electric circuit. What kind of circuit you have achieved, open electric circuit or closed electric circuit?
2. Define the answer in (a) and support your answer by a diagram.

Answer 1

(a) An open electric circuit.

(b) An open electric circuit is a circuit in which the conducting path is broken, so electric current cannot flow. When the bulb is switched off, the switch opens the circuit and the bulb stops glowing.

The gap at the switch breaks the path, so no current flows.