Electricity Class 10 MCQs with Answers
Electricity Class 10 MCQs with Answers
Class: 10 | Subject: Science | Section: Physics
Topic: Electricity
Based on CBSE Board Examination Pattern
Topic: Electricity
Based on CBSE Board Examination Pattern
Instructions: These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 10 Science Board Examination standard.
1. SI unit of electric current is:
Answer: B. Ampere
Explanation: Current is the rate of flow of charge. Unit = Ampere (A).
Explanation: Current is the rate of flow of charge. Unit = Ampere (A).
2. Electric current is measured using:
Answer: B
Explanation: Ammeter is connected in series to measure current.
Explanation: Ammeter is connected in series to measure current.
3. Potential difference is measured in:
Answer: B
Explanation: 1 Volt = 1 Joule/Coulomb.
Explanation: 1 Volt = 1 Joule/Coulomb.
4. Ohm’s Law states:
Answer: A
Explanation: At constant temperature, V/I = constant.
Explanation: At constant temperature, V/I = constant.
5. Resistance depends on:
Answer: D
Explanation: R = ρL/A.
Explanation: R = ρL/A.
6. SI unit of resistance:
Answer: C
7. Metals are good conductors because they have:
Answer: A
Explanation: Free electrons drift under electric field.
Explanation: Free electrons drift under electric field.
8. Combination where current is same:
Answer: B
Explanation: Current remains same in series.
Explanation: Current remains same in series.
9. Equivalent resistance in parallel is:
Answer: B
Explanation: Parallel reduces total resistance.
Explanation: Parallel reduces total resistance.
10. Heating effect depends on:
Answer: A
Explanation: Joule’s law of heating.
Explanation: Joule’s law of heating.
11. Power formula:
Answer: A
P = VI.
P = VI.
12. SI unit of power:
Answer: B
13. 1 kWh equals:
Answer: A
14. Fuse wire has:
Answer: C
15. Commercial unit of energy:
Answer: B
16. Voltmeter connected in:
Answer: B
17. Nichrome used in heaters due to:
Answer: B
18. Short circuit occurs when:
Answer: C
19. Electric energy =
Answer: A
20. Device converting electrical to heat:
Answer: B