Q1. What is needed for current to flow?
(a) Open circuit
(b) Closed circuit
(c) Only a battery
(d) Only a switch

Answer: (b) Closed circuit

Q2. Which part of the circuit works like a traffic signal?
(a) Bulb
(b) Switch
(c) Battery
(d) Wire

Answer: (b) Switch

Q3. (Short) Why doesn’t the bulb glow in an open circuit?
Answer: Because the path is broken and electrons cannot complete their journey.

Q4. (Short) What provides energy to the circuit?
Answer: The battery provides the energy that pushes electrons.