# MCQ Questions for Class 10 Science Chapter 12 Electricity with Answers

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Below you will find MCQ Questions of Chapter 12 Electricity Class 10 Science Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. These Class 10 MCQ Questions with answers will widen your skills and understand concepts in a better manner.

# MCQ Questions for Class 10 Science Chapter 12 Electricity with answers

1. The least resistance obtained by using 2Ω , 4Ω, 1Ω and 100Ω is

(a) < 100 Ω

(b) < 4 Ω

(c) < 1 Ω

(d) > 2 Ω

► (c) < 1 Ω

2. Two resistors 4Ω and 2Ω are connected in series, and potential difference of 12 V is applied across the combination. Then, the current through the circuit is:​

(a) 4.5 A

(b) 4 A

(c) 2 A

(d) 1 A

► (c) 2 A

3. Time rate of flow of electric charge measures electric _________.

(a) Circuit

(b) Current

(c) Potential difference

(d) Cell

► (b) Current

4. Electricity constituted by moving electric charges, is called

(a) Positive electricity

(b) Negative electricity

(c) Current electricity

(d) Static electricity

► (c) Current electricity

5. Electrical resistivity of any given metallic wire depends upon

(a) its thickness

(b) its shape

(c) nature of the material

(d) its length

► (c) nature of the material

6. A resistance wire is stretched so as to double its length. Its new resistivity will have a magnitude

(a) 2 times its original value

(b) 4 times its original value

(c) 8 times its original value

(d) same as its original value

► (d) same as its original value

7. Electric current is produced by flow of

(a) Electrons

(b) Protons

(c) Negative ions

(d) Positive ions

► (a) Electrons

8. The symbol used for representing Independent sources

(a) Diamond

(b) Square

(c) Circle

(d) Triangle

► (c) Circle

9. If four resistors each of 1Ω are connected in parallel, the effective resistance will be

(a) 0.5Ω

(b) 0.25Ω

(c) 4Ω

(d) 2Ω

► (b) 0.25Ω

10. A cooler of 1500 W, 200 volt and a fan of 500 W, 200 volt are to be used from a household supply. The rating of fuse to be used is

(a) 2.5 A

(b) 5.0 A

(c) 7.5 A

(d) 10 A

► (d) 10 A

11. The resistivity of insulators is of the order of

(a) 10-8 Ω-m

(b) 101 Ω-m

(c) 10-6 Ω-m

(d) 106 Ω-m

► (a) 10-8 Ω-m

12. The law which gives a relation between electric potential difference and electric current is called

(b) Oersted's law

(c) Ohm's law

(d) Newton's law

► (c) Ohm's law

13. In parallel combination, resistance decreases due to increase in

(a) Temperature

(b) Humidity

(c) Length

(d) Area of cross-section

► (d) Area of cross-section

14. Work done is moving a unit positive test charge from one point to other inside an electric field, is called

(a) Potential

(b) Field

(c) Field intensity

(d) Potential difference

► (d) Potential difference

15. The electrical resistance of insulators is

(a) high

(b) low

(c) zero

(d) infinitely high

► (d) infinitely high

16. The path connecting two points at different potentials, to make the electric charges flow, is called electric _________.

(a) Circuit

(b) Current

(c) Potential difference

(d) None of the above

► (a) Circuit

17. The space around a charge in which its effect can be felt is called its

(a) Potential

(b) Electric field

(c) Field intensity

(d) Potential difference

► (b) Electric field

18. The device which measures electric potential difference between two points is called

(a) Ammeter

(b) Voltmeter

(c) Manometer

(d) Water meter

► (b) Voltmeter

19. The combined resistance of 6Ω and 12Ω connected in parallel is

(a) 6 Ω

(b) 2 Ω

(c) 18 Ω

(d) 4 Ω

► (d) 4 Ω

20. Coulomb is the SI unit of:

(a) charge

(b) current

(c) potential difference

(d) resistance

► (a) charge

21. A metallic conductor has loosely bound electrons called free electrons. The metallic conductor is

(a) negatively charged

(b) positively charged

(c) neutral

(d) Either positively charged or negatively charged

► (c) neutral

22. Resistivity of a given conductor depends on

(a) length of conductor

(b) length as well as cross-section area of conductor

(c) material and dimensions, of conductor

(d) material of conductor and temperature

► (d) material of conductor and temperature

23. The rheostat is used in the circuit to :

(a) increase the magnitude of the current

(b) decrease the magnitude of the current

(c) increase or decrease the magnitude of the current

(d) change the current in the resistor without changing the potential difference across its two ends

► (c) increase or decrease the magnitude of the current

24. In an atom, particle having a positive charge is called

(a) Neutron

(b) Proton

(c) Electron

(d) Ion

► (b) Proton

25. Conventional direction of electric current is from

(a) Lower potential to higher potential

(b) Higher resistance to lower resistance

(c) Positive to negative terminal

(d) Negative to positive terminal

► (c) Positive to negative terminal

26. The force acting on a unit positive test charge at a point inside an electric field is called

(a) Potential

(b) Field

(c) Field intensity

(d) Potential difference

► (c) Field intensity

27. Work done in moving a unit positive test charge from infinity to a point inside an electric field, is called

(a) Electric potential

(b) Field

(c) Field intensity

(d) Potential difference

► (a) Electric potential

28. The resistance of an alloy :

(a) increases with temperature

(b) decreases with temperature

(c) is constant with rise in temperature

(d) is zero

► (a) increases with temperature

Hope the given MCQ Questions will help you in cracking exams with good marks. These Electricity MCQ Questions will help you in practising more and more questions in less time.