Physics Practice: Household Circuits (Mock Test 2 - Intermediate)
1. In the ring system of house wiring, the current can reach an appliance from ________ directions.
2. A fuse wire should have a ________ melting point and ________ specific resistance.
3. The main disadvantage of the "Tree System" of wiring compared to the "Ring System" is:
4. Which wire in the house circuit is at zero potential?
5. According to the new international convention, the Live wire is colored:
6. A fuse wire is made of an alloy of:
7. The safety device which is based on the heating effect of current is:
8. In a 3-pin plug, the top-most pin is longer and thicker. This pin is for:
9. Local earthing is usually done near the ________ of the house.
10. A switch must be connected in the live wire because:
