Question Paper
Class / Subject: Class 10 (ICSE) · Physics
Chapter: Chapter 9 — Chapter 9: Household Circuits
Time Allowed: 32 minutes
Max Marks: 16
1. What does a fuse do? [1]
(A) Melts and breaks circuit on overcurrent
(B) Increases current flow
(C) Decreases voltage only
(D) Nothing specific
2. What is earthing? [1]
(A) Connecting appliance's metal body to the earth
(B) Connecting only the live wire
(C) Removing all wires
(D) Disconnecting the appliance
3. What does earthing prevent? [1]
(A) Electric shocks
(B) Increased current only
(C) Increased voltage only
(D) Nothing specific
4. What are the three wires in a plug? [1]
(A) Live, neutral, earth
(B) Only live and neutral
(C) Only live wire
(D) Red, blue, green only
5. How are household appliances connected? [1]
(A) In parallel
(B) In series
(C) Neither in series nor parallel
(D) Randomly connected
6. Why are appliances connected in parallel? [1]
(A) Each gets full voltage, works independently
(B) To share voltage equally, reducing it
(C) To reduce current for all
(D) No specific reason
7. What protects against circuit overcurrent? [1]
(A) A fuse
(B) Only the live wire
(C) Only the neutral wire
(D) Nothing protects it
8. Why learn about household circuits? [1]
(A) For electrical safety understanding
(B) No reason
(C) It's not useful
(D) Only for tests
9. What does a fuse do? [1]
(A) Melts and breaks circuit on overcurrent
(B) Increases current flow
(C) Decreases voltage only
(D) Nothing specific
10. What is earthing? [1]
(A) Connecting appliance's metal body to the earth
(B) Connecting only the live wire
(C) Removing all wires
(D) Disconnecting the appliance
11. What does earthing prevent? [1]
(A) Electric shocks
(B) Increased current only
(C) Increased voltage only
(D) Nothing specific
12. What are the three wires in a plug? [1]
(A) Live, neutral, earth
(B) Only live and neutral
(C) Only live wire
(D) Red, blue, green only
13. How are household appliances connected? [1]
(A) In parallel
(B) In series
(C) Neither in series nor parallel
(D) Randomly connected
14. Why are appliances connected in parallel? [1]
(A) Each gets full voltage, works independently
(B) To share voltage equally, reducing it
(C) To reduce current for all
(D) No specific reason
15. What protects against circuit overcurrent? [1]
(A) A fuse
(B) Only the live wire
(C) Only the neutral wire
(D) Nothing protects it
16. Why learn about household circuits? [1]
(A) For electrical safety understanding
(B) No reason
(C) It's not useful
(D) Only for tests