Electricity — Advanced

Grade 8 Science — Electricity — Advanced: 25 practice questions with instant scoring and explanations.

1. An electric circuit consists of:
2. Current is defined as:
3. The SI unit of electric current is:
4. Voltage (potential difference) is defined as:
5. The SI unit of voltage is:
6. Resistance is the property of a conductor that:
7. The SI unit of resistance is:
8. Ohm's law states that:
9. In a series circuit, the total resistance is:
10. In a parallel circuit, the total resistance is:
11. In a series circuit, the current is:
12. In a parallel circuit, the voltage is:
13. The heating effect of current (Joule heating) occurs because:
14. In household circuits, appliances are connected in:
15. A fuse in a household circuit:
16. MCB (Miniature Circuit Breaker) is preferable to a fuse because:
17. Earthing (grounding) is done to:
18. The standard voltage in household circuits in India is:
19. A conductor with low resistance will have:
20. If the resistance in a circuit increases and voltage remains constant, current will:
21. Power consumed by an electrical device is given by:
22. The SI unit of electrical power is:
23. A wire with a large cross-sectional area has:
24. The colour code for the neutral wire in household circuits is:
25. Electric shock occurs when: