Electrostatics MCQs with Answers

adminApril 7, 2024

0 8 1 minute read

Welcome to the Electrostatics MCQs with Answers. In this post, we have shared Electrostatics Online Test for different competitive exams. Find practice Electrostatics Practice Questions with answers in Physics Tests exams here. Each question offers a chance to enhance your knowledge regarding Electrostatics.

Electrostatics Online Quiz

By presenting 3 options to choose from, Electrostatics Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Electrostatics Questions and Answers and click over the correct answer.

Test Name: Electrostatics MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Electrostatics

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1 / 40

What is the formula for the energy stored in a capacitor?

a) U = 1/2CV^2

b) U = 1/2Q^2/C

c) U = QV

2 / 40

What is the relationship between the electric field and the electric potential in a uniform field region?

c) E = -ΔV/A

a) E = -ΔV/d

b) E = -ΔV

3 / 40

What is the electric field intensity due to a point charge at a distance r from it?

c) E = kq

b) E = kq/r

a) E = kq/r^2

4 / 40

Which of the following is true about electric potential energy?

c) It can be positive or negative

a) It is always positive

b) It is always negative

5 / 40

What is the relationship between the potential difference and the electric field in a uniform field region?

c) E = -ΔV/A

a) E = -ΔV/d

b) E = -ΔV

6 / 40

The work done in moving a charge between two points in an electric field depends on ________.

b) the distance between the points

a) the magnitude of the charge

c) both the magnitude of the charge and the distance between the points

7 / 40

What is the formula for the electric field intensity due to a uniformly charged sphere at a distance r from its center?

b) E = kq/r

c) E = kq

a) E = kq/r^2

8 / 40

The unit of electric flux is ________.

a) Nm^2/C

c) V/m

b) C/m^2

9 / 40

What is the formula for the electric field intensity due to an infinite line of charge?

c) E = λ/πε₀r

a) E = λ/2πε₀r

b) E = λ/4πε₀r

10 / 40

The electric field lines inside a charged conductor are ________.

b) parallel to the surface

a) perpendicular to the surface

c) non-existent

11 / 40

What is the force experienced by a charge of 2 C in an electric field of 4 N/C?

a) 8 N

b) 2 N

c) 0 N

12 / 40

Which of the following materials is a good conductor of electricity?

c) Rubber

a) Copper

b) Glass

13 / 40

What is the formula for the electric potential difference between two points in an electric field?

c) ΔV = kq/r

a) ΔV = Ed

b) ΔV = Q/C

14 / 40

What is the net electric flux through a closed surface surrounding a charge?

b) zero

a) proportional to the magnitude of the charge

c) infinite

15 / 40

What happens to the electric potential at a point if work is done in bringing a positive charge from infinity to that point?

c) It remains constant

b) It decreases

a) It increases

16 / 40

The electric potential at a point due to a positive charge is ________.

a) positive

c) zero

b) negative

17 / 40

The electric potential difference between two points in an electric field is measured in ________.

c) Ohms (Ω)

a) Volts (V)

b) Ampere (A)

18 / 40

What is the electric field intensity inside a conductor in electrostatic equilibrium?

a) zero

b) non-zero but constant

c) variable

19 / 40

What is the SI unit of electric charge?

b) Volt (V)

a) Coulomb (C)

c) Ohm (Ω)

20 / 40

Coulomb's law describes the force between two ________ charges.

b) magnetic

c) gravitational

a) electric

21 / 40

What happens to the force between two point charges if the distance between them is doubled?

a) It decreases by a factor of 2

c) It decreases by a factor of 8

b) It decreases by a factor of 4

22 / 40

Which material is commonly used as a dielectric in capacitors?

b) Air

c) Mica

a) Glass

23 / 40

Which of the following is a scalar quantity in electrostatics?

b) Electric field

a) Electric potential

c) Electric flux

24 / 40

Which of the following is a scalar quantity in electrostatics?

c) Electric flux

b) Electric field

a) Electric potential

25 / 40

What is the direction of the electric field at a point due to a positive charge?

c) parallel to the charge

a) away from the charge

b) towards the charge

26 / 40

What is the electric potential at a point in an electric field?

a) the work done in bringing a unit positive charge from infinity to that point

b) the force experienced by a unit positive charge at that point

c) the energy stored in a unit positive charge at that point

27 / 40

Which law states that the electric flux through a closed surface is equal to the total charge enclosed by the surface divided by the permittivity of free space?

b) Coulomb's law

c) Faraday's law

a) Gauss's law

28 / 40

The electric field inside a charged conductor is ________.

c) variable

b) non-zero but constant

a) zero

29 / 40

What is the formula for the capacitance of a parallel plate capacitor?

a) C = ε0A/d

c) C = Q/d

b) C = Q/V

30 / 40

What happens to the electric field between the plates of a charged capacitor if the area of the plates is increased?

c) It remains constant

a) It decreases

b) It increases

31 / 40

What happens to the capacitance of a parallel plate capacitor if the distance between the plates is increased?

b) It decreases

a) It increases

c) It remains constant

32 / 40

What is the direction of the force experienced by a negative charge in an electric field?

a) opposite to the field

b) along the field

c) perpendicular to the field

33 / 40

What happens to the electric field strength between two oppositely charged parallel plates if the separation distance is halved?

b) It halves

a) It doubles

c) It remains constant

34 / 40

What happens to the energy stored in a capacitor if the capacitance is doubled?

b) It halves

a) It doubles

c) It remains constant

35 / 40

What is the direction of the electric field inside a parallel plate capacitor?

a) from positive to negative

c) from positive to positive

b) from negative to positive

36 / 40

The electric potential at a point due to a negatively charged object is ________.

b) positive

c) zero

a) negative

37 / 40

Which type of material allows electric charges to move freely?

b) Insulator

c) Semiconductor

a) Conductor

38 / 40

The electric field lines outside a charged conductor are ________.

b) parallel to the surface

a) perpendicular to the surface

c) non-existent

39 / 40

What is the capacitance of a capacitor with a charge of 4 C and a potential difference of 2 V?

b) 6 F

a) 2 F

c) 8 F

40 / 40

The force between two point charges is directly proportional to the product of their charges and ________.

a) inversely proportional to the square of the distance

c) inversely proportional to the cube of the distance

b) directly proportional to the square of the distance

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adminApril 7, 2024

0 8 1 minute read