Electric Charge, Class 12 Physics NCERT Solutions

MCQ’s For All Chapters – Physics Class 12th

1. There will be total 20 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. A material in which electrons are tightly bound and cannot move freely at room temperature is called

conductors

superconductors

semiconductors

insulators

Your comments:

Question 1 of 20

2. According to the principle of conservation of charge

charges can be created but it cannot be destroyed

charges cannot be created but can be destroyed

the sum of charges in any system is constant

the algebraic sum of charges in any closed system is constant

Your comments:

Question 2 of 20

3. A coulomb is same as:

ampere/second

ampere.second

ampere/second²

ampere/meter²

Your comments:

Question 3 of 20

4. When a glass rod is rubbed with silk, it becomes positively charged because

Protons are transferred to silk

Electrons are transferred to silk

Protons are added to it.

Electrons are added to it.

Your comments:

Question 4 of 20

5. The charge on a glass rod that has been rubbed with silk is called positive:

so that the proton charge will be positive

because like charges repel

to conform to the conventions adopted for G and m in Newton’s law of gravitation

by arbitrary convention

Your comments:

Question 5 of 20

6. A material in which electrons are loosely bound and can move freely at room temperature is called

insulator

superconductor

semiconductor

conductor

Your comments:

Question 6 of 20

7. Choose the correct statement

The total charge particles in the universe remains constant

The total positive charge of the universe is constant

The total negative charge of the universe is constant

The total charge of the universe is constant

Your comments:

Question 7 of 20

8. To make an uncharged object to have a negative charge we must:

add some electrons

add some atoms

remove some atoms

remove some electrons

Your comments:

Question 8 of 20

9. When conductors are placed in an electric field, their electrons are moved

May be randomly or in direction of applied field.

In a direction of applied field

Randomly in all direction

Opposite to applied field

Your comments:

Question 9 of 20

10. Quarks are entities that have

Fractional charges, combination of these are present in protons and neutrons

integer charges, combination of these are present in protons, electrons and neutrons

fractional charges, combination of these are present in protons and electrons

no charge, combination of these are present in protons and electrons

Your comments:

Question 10 of 20

11. A negative ion is an atom that ________ electrons

is going to loose

is going to gain

has gained

has lost

Your comments:

Question 11 of 20

12. When a hard rubber rod is given a negative charge by rubbing it with wool:

negative charges are transferred from wool to rod

positive charges are transferred from wool to rod

negative charges are transferred from rod to wool

positive charges are transferred from rod to wool

Your comments:

Question 12 of 20

13. The value of charge on a body which carries 30 excess electrons is

A

B

C

D

Your comments:

Question 13 of 20

14. The total negative charge in 1 mol of helium (atomic number 2, atomic mass 4) is:

A

B

C

D

Your comments:

Question 14 of 20

15. When we rub a glass rod with silk, then

mass of silk decreases

mass of glass rod and silk increases

mass of glass rod increases

mass of glass rod decreases

Your comments:

Question 15 of 20

16. How many electrons are present in 1 coulomb of charge?

1.6 × 10 ^-19

6.25 × 10 ¹⁹

6.25 × 10 ¹⁸

6.25 × 10 ^-18

Your comments:

Question 16 of 20

17. What does q₁ + q₂ = 0 signify?

q₁ and q₂ are equal charges

q₁ and q₂ are equal charges but have opposite sign

q₁ and q₂ are equal charges and have same sign

q₁ and q₂ are not equal charges but have same sign

Your comments:

Question 17 of 20

18. A silk cloth rubbed with a glass rod acquire a charge (-1.6 - 10 ^-19) C. Then the charge on the glass rod is

- 3.2 × 10 ^-19 C

- 1.6 × 10 ^-19 C

+1.6 × 10 ^-19 C

3.2 × 10 ^-19 C

Your comments:

Question 18 of 20

19. To make uncharged object have a positive charge:

add some electrons

remove some electrons

add some neutrons

remove some neutrons

Your comments:

Question 19 of 20

20. Two glass rods rubbed with silk are placed close to each other. They will

will attract

will repel or attract, cannot predict

neither repel nor attract

will repel

Your comments:

Question 20 of 20

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