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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