# Class 12 Physics Question Bank – Electrostatics

This post presents a Physics Question Bank for class 12 covering the Electrostatics chapter.

## Definition type questions from the Electrostatics chapter

1) Define electric flux.

2) Define electric dipole moment ofan electric dipole.

3) Define the dielectric constant of a medium.

4) Define quantization of electric charge.

5)Define the following terms : (i) Electric field (ii) Electric field intensity

6) Define electric potential energy.

7) Define electrostatic potential.

8) Define the capacitance of a capacitor.

9) Define an equipotential surface.

## Difference | Differentiate type questions on Electrostatics

1) Differentiate between a dielectric and a conductor.

2 ) A metallic solid sphere is placed in a uniform electric field as shown in the figure. Which path is followed by the lines of force?

3 ) If an electron, moving with a finite velocity, enters a transverse electric field, then which path will the electron take?

4 ) What is the geometrical shape of equipotential surfaces due to a single isolated charge?

5 ) Distinguish between electric potential and potential energy.

6) The field lines of a negative point charge are as shown in the figure. Does the kinetic energy of a small negative charge increase or decrease in going from B to A?

7 ) Explain the difference in the behavior of (i) a conductor and (ii) a dielectric in the presence of an external electric field.

8 ) What is the direction of the field for positive and negative charge densities?

9) A point charge +Q is placed at point O as shown in the figure.

Is the potential difference VA — VB positive, negative, or zero?

## draw graph/diagram (Electrostatics)

1 ) Draw the field lines when the charge density of the sphere is (1) positive (ii) negative.

2 ) Draw the equipotential surfaces due to an electric dipole. Locate the points where the potential due to the dipole is zero.

3 ) Sketch the lines of force due to two equal positive point charges placed near each other.

4) Draw a graph of electric fields E(r) with distance r from the center of the shell for 0<=r<=infinity.

5) Draw lines of force to represent a uniform electric field.

6) Plot a graph comparing the variation of potential V and electric field E due to a point charge q as a function of distance r from the point
charge.

7) Draw an equipotential surface in a uniform electric field.

8) Two charges of 5uC and —5uC are placed at points A and B 2 cm apart. Depict an equipotential surface of the system.

9) Draw a labeled schematic diagram of a Van-de-Graff generator.

10) Draw equipotential surfaces :
(i) in the case of a single point charge and
(ii) in a constant electric field in Z-direction.

11) Draw a graph of E versus r for r >> a.

Class 12 Physics Question Bank – Electrostatics
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