NCERT Class 12 Physics Chapter 1 Electric Charges and Fields MCQs Quiz - 2

1. Which of the following is a scalar quantity?

Force

Velocity

Electric charge

Momentum

2. The capacitance of a parallel plate capacitor increases when:

The distance between the plates increases

The area of the plates decreases

A dielectric is introduced between the plates

The potential difference between the plates is reduced

3. The electric field inside a conductor is:

Zero

Infinity

Constant

Varies with charge

4. Gauss law is valid for:

Only spheres

Only cubes

Any closed surface

Only cylindrical surfaces

5. Electric flux depends on:

Charge enclosed

Shape of the surface

Volume of the surface

Mass of the body

6. Coulomb law is applicable to:

Point charges

Extended bodies

Insulating surfaces

Conducting wires

7. Electric field intensity due to a point charge varies with:

Inverse square of distance

Directly with distance

Does not depend on distance

Square of distance

8. The direction of an electric field at a point is the direction of the force on:

A neutral body

A negative test charge

A positive test charge

An electron

9. The electrostatic potential energy of a system of charges is:

Always positive

Always negative

Can be positive or negative

Zero

10. The work done in moving a charge along an equipotential surface is:

Zero

Infinite

Maximum

Depends on the path

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