Physics · JEE

Electrostatics Revision for JEE

159+ syllabus-aligned questions available

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Revise Electrostatics by covering every subtopic once, drilling formulas, then solving 150+ timed MCQs with full solutions.

Use this Electrostatics revision checklist before mocks and the final exam. Reinforce concepts with 150+ syllabus-aligned MCQs on Goodmarks.

Revision checklist

1.Coulomb's law, superposition, electric field and potential
2.Gauss's law applications (wire, sheet, shell)
3.Capacitors, combination, energy, dielectrics
4.Revise Electric charges: conservation of charge, Coulomb's law forces between two point charges, forces between multiple charges, superposition principle and continuous charge distribution with 10 MCQs
5.Revise Electric field: electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in a uniform electric field with 10 MCQs
6.Revise Electric flux, Gauss's law and its applications to find field due to infinitely long uniformly charged straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell with 10 MCQs
7.Revise Electric potential and its calculation for a point charge, electric dipole and system of charges with 10 MCQs
8.Revise Potential difference, equipotential surfaces, electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field with 10 MCQs
9.Revise Conductors and insulators, dielectrics and electric polarization with 10 MCQs

JEE Formula Sheet

6+ important formulas for Electrostatics

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Subtopics in Electrostatics

View Electrostatics formula sheet — 6+ JEE formulas

Free sample questions

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Q1PhysicsUnit 11: Electrostatics

We cannot see anything in a dark room because:

Q2PhysicsUnit 11: Electrostatics

The electric field at a distance

\frac{3 R}{2}

from the centre of a charged conducting spherical shell of radius

\mathrm{R}

\mathrm{E}

. The electric field at a distance

\frac{\boldsymbol{R}}{\mathbf{2}}

from the centre of the sphere is :

Q3PhysicsUnit 11: Electrostatics

A particle with a charge of 3 coulombs is taken from a point at a potential of 50 V to another point at a potential of

120 \mathrm{V}

Calculate the work done.

Q4PhysicsUnit 11: Electrostatics

The voltage required to balance an oil drop carrying 10 electrons between the plates of a capacitor which are

10 \mathrm{mm}

apart, is (Given mass of the oil drop=

\left.\mathbf{3} \cdot \mathbf{2} \times \mathbf{1 0}^{-\mathbf{1 5}} \mathbf{k g}, \boldsymbol{e}=\mathbf{1 . 6} \times \mathbf{1 0}^{-\mathbf{1 9}} \mathbf{C}\right)

Q5PhysicsUnit 11: Electrostatics

The top of the atmosphere is about 400 kV with respect to the surface of the earth, corresponding to an electric field that decreases with altitude. Near the surface of the earth, the field is about

100 V m^{-1}

Still, we do not get an electric shock as we step out of our house into the open house, because (assume the house to be a steel cage so that there is no field inside)

Q6PhysicsUnit 11: Electrostatics

A charge of

+4 \mu C

is kept at a distance of

50 \mathrm{cm}

from a charge of

-6 \mu C

. Find the two points where the potential is zero

Q7PhysicsUnit 11: Electrostatics

The electric potential due to a dipole at a point on the perpendicular bisector of its length is :

Q8PhysicsUnit 11: Electrostatics

A thick shell with inner radius

R

and outer radius

3 R

has a uniform charge density

\sigma c / m^{3} .

It has a spherical cavity of radius

R

as shown in the figure. the electric field at the centre of the cavity is

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Frequently asked questions

How should I revise Electrostatics before JEE?

Follow the checklist on this page, revise formulas daily, and attempt mixed MCQs every 2–3 days.