Class 12th Physics Chapter 1 Electric Charges and Fields MCQ Test

Class 12th Physics Test

Name: Class:

1. Which of the following is the SI unit of electric charge?

A) Coulomb

B) Ampere

C) Volt

D) Farad

2. A body is said to be positively charged if it has:

A) More electrons than protons

B) More protons than electrons

C) Equal number of electrons and protons

D) More neutrons than protons

3. The charge on an electron is approximately:

A) 1.6×10^-19 C

B) -1.6×10^-19 C

C) 9.1×10^-31 C

D) 9.1×10^-31 C

4. The principle of conservation of charge states that:

A) Charge can be created but not destroyed

B) Charge can neither be created nor destroyed

C) Total charge of a system always increases

D) Charge depends on the mass of the object

5. The process of charging a body by rubbing is called:

A) Conduction

B) Induction

C) Friction

D) Polarisation

6. Which of the following materials is an example of an insulator?

A) Copper

B) Silver

C) Rubber

D) Iron

7. The electric force between two charges follows which of the following laws?

A) Inverse square law

B) Direct square law

C) Newton’s third law

D) Kirchhoff’s law

8. If two identical conducting spheres having charges +4C and -2C are brought into contact and then separated, the final charge on each sphere will be:

A) +1 C

B) -1C

C) +2C

D) 0C

9. Like charges _______ and unlike charges _______.

A) Attract, repel

B) Repel, attract

C) Do not interact, attract

D) Do not interact, repel

10. The process of transferring charge from a charged body to the earth is called:

A) Polarization

B) Induction

C) Earthing

D) Conduction

Test Results