MCQ Practice – Class 6 to 10

Q1. 1 coulomb equals:

A. 1 A·s B. 1 V·s C. 1 W·s D. 1 J/s

Q2. Heating effect increases when:

A. Current decreases B. Current increases C. Resistance decreases D. No current flows

Q3. Device used to vary resistance in a circuit:

A. Ammeter B. Rheostat C. Fuse D. Voltmeter

Q4. The SI unit of electric charge is:

A. Newton B. Ampere C. Volt D. Coulomb

Q5. An electric iron converts electrical energy into:

A. Mechanical energy B. Light energy C. Heat energy D. Chemical energy

Q6. The rate of flow of electric charge is:

A. Power B. Resistance C. Potential difference D. Current

Q7. 1 kilowatt equals:

A. 100 W B. 10 W C. 1000 W D. 1 W

Q8. In series combination, current:

A. Decreases B. Changes randomly C. Increases D. Remains same

Q9. A straight-line V–I graph shows:

A. Non-ohmic behaviour B. High temperature C. Ohmic behaviour D. Electric breakdown

Q10. 1 kWh (unit of energy) is equal to:

A. 3.6 × 10^6 J B. 100 J C. 5 × 10^3 J D. 10 J

Quiz – Electricity