Electrostatics Revision Notes – Key Concepts, Formulas & PDF

The Electrostatics chapter covers the study of stationary electric charges and their interactions, resulting in phenomena like Coulomb's law, which describes the force between charges. This is a crucial chapter for JEE Main Exams, and you can expect at least 2 questions from it. Check out how many questions were asked from the Electrostatics chapter in the last five years of JEE Main exams.

Take advantage of the opportunity to boost your preparation with our Electrostatics Notes. These notes cover the entire JEE Main Physics syllabus; you can download them for FREE.

Important Topics from Electrostatics JEE Main 2025

Below are some important topics students must consider while studying the Electrostatics chapter. These topics are picked from the previous year’s JEE Main exams. Hence, before downloading the Revision notes, you can go through the list of important topics in this chapter:

• Coulomb's Law

• Electric Field and Electric Potential

• Gauss's Law

• Electric Dipole

• Capacitors and Capacitance

• Electric Potential Energy

• Conductors and Insulators

• Electrostatic Equilibrium

• Continuous Charge Distribution

• Image Charges

Why are Short Notes of Electrostatics JEE Important?

Get ready to immerse yourself in the electrifying world of Electrostatics, a chapter that sheds light on the electrifying phenomena that shape our universe! From the smallest particles to the grandest celestial bodies, the forces at play are nothing short of captivating.

Unveiling the Basics:

Get charged up as we dive into the fundamentals! Learn how charges interact - positive, negative, and the exciting dance they share. Imagine charges as the stars of an electric show, where attraction and repulsion take centre stage!

Coulomb's Law Demystified:

Ever wondered how charges exert their influence? Coulomb's Law holds the answer! Discover the mathematical magic behind this law that quantifies the forces between charges. Our interactive examples will illuminate this concept in a way that makes you say, "Eureka!"

Electric Fields Unveiled:

Enter the realm of electric fields, the invisible forces that sculpt the paths charges follow. Picture them as a guide, gently nudging charges in a dance of their own. Get ready to grasp concepts like field lines and potential energy as we unlock their secrets!

Dive into Conductors and Insulators:

Is it possible to shield against electric fields? Enter conductors and insulators – the superheroes and villains of our story! Conductors readily share charges' secrets, while insulators keep them locked away. Our real-world examples will electrify your understanding!

Sparks of Charging and Discharging:

Ever experienced the shocking jolt of static electricity? Unravel the mystery behind charging and discharging processes. Witness charges eagerly seeking balance in their electrifying quest!

Interactive Problem-Solving:

Brace yourself for the ultimate test! Our interactive problem-solving sessions will make you the hero of Electrostatics. Decode charge distributions, calculate electric fields, and navigate through charged scenarios like a seasoned pro!

Real-World Applications:

Zoom out from the classroom and discover how Electrostatics shapes reality. From everyday phenomena like lightning and static to advanced applications in technology and industry, the impact of Electrostatics is truly electrifying!

The Electrostatics chapter is your passport to understanding the unseen forces that govern our charged universe. So buckle up, embrace the sparks of knowledge, and embark on a journey that will leave you positively charged for JEE Main!

Power of Equations: How Formulas Amplify Revision Note Learning

Equations aren't just symbols; they're your key to solving problems in Physics. By grasping formulas, you'll tackle complex concepts effortlessly and boost your confidence. Dive into the world of equations along with JEE Main Physics Revision notes and amplify your study sessions. Explore our Physics formula pages to start your preparation journey for JEE Main today!

Important Formulas from Electrostatics JEE Notes

Here are some of the most important formulas from Electrostatics for JEE preparation:

1. Coulomb’s Law

The electrostatic force $F$ between two point charges $q_1$ and $q_2$ separated by a distance $r$ in a vacuum is given by:

$F=k_e\frac{q_1 q_2}{r^2}$, where $k_e=\frac{1}{4 \pi \epsilon_0} \approx 9 \times 10^9 \, \text{Nm}^2/\text{C}^2$ and $\epsilon_0$ is the permittivity of free space.

2. Electric Field

The electric field $E$ due to a point charge $q$ at a distance $r$ is:

$E= k_e\frac{q}{r^2}$

The direction of $E$ is radially outward from $q$ if $q$ is positive, and radially inward if $q$ is negative.

3. Electric Field Due to a Dipole

The electric field $E$ at a point on the axial line of a dipole (distance $r$ from the centre of the dipole, with dipole moment $p=q \cdot 2a$) is:

$E_{\text{axial}}=\frac{1}{4 \pi \epsilon_0} \frac{2p}{r^3}$

For a point on the equatorial line of the dipole:

$E_{\text{equatorial}}=\frac{1}{4 \pi \epsilon_0} \frac{p}{r^3}$

4. Electric Potential

The electric potential $V$ due to a point charge $q$ at a distance $r$ is:

$V=k_e\frac{q}{r}$

For multiple charges, the total potential at a point is the algebraic sum of the potentials due to individual charges:

$V_{\text{total}}=\sum_i V_i=\sum_i k_e\frac{q_i}{r_i}$

5. Electric Potential Due to a Dipole

The electric potential $V$ at a point on the axial line of a dipole at distance $r$ from the centre is:

$V_{\text{axial}}=\frac{1}{4 \pi \epsilon_0} \frac{p \cos \theta}{r^2}$

For a point on the equatorial line of the dipole:

$V_{\text{equatorial}}=0$

6. Relation Between Electric Field and Potential

The electric field $E$ is the negative gradient of the electric potential $V$:

$E=-\frac{dV}{dr}$

In three dimensions, $\vec{E}=-\nabla V$.

7. Gauss’s Law

The electric flux $\Phi$ through a closed surface enclosing a charge $Q_{\text{enclosed}}$ is:

$\Phi=\oint_S \vec{E} \cdot d\vec{A}=\frac{Q_{\text{enclosed}}}{\epsilon_0}$

8. Electric Field Due to an Infinite Sheet of Charge

For an infinite sheet of charge with surface charge density $\sigma$:

$E=\frac{\sigma}{2 \epsilon_0}$

9. Electric Field Due to a Spherical Shell

- Outside the Shell (at distance $r$ from the centre): The shell acts as a point charge at the centre.

 $E=k_e\frac{Q}{r^2}$

- On the surface of the Shell:

 $E=k_e\frac{Q}{R^2}$

- Inside the Shell:

 $E=0$

10. Energy Stored in a System of Charges

The potential energy $U$ of a system of two point charges $q_1$ and $q_2$ separated by distance $r$ is:

$U = k_e\frac{q_1 q_2}{r}$

For a system of multiple charges, the total potential energy is the sum of potential energies of all pairs of charges.

Benefits of Referring to Electrostatics JEE Notes PDF

• Electrostatics JEE Notes provide a quick summary of all Electrostatics concepts, saving time while revising.

• All important formulas are gathered together, making it easy to review them at a glance.

• Short Notes Of Electrostatics JEE covers core topics in simple language, helping students understand challenging areas without extra effort.

• Step-by-step solved examples are included, so students can practice and see applications of the concepts.

• Prepared by subject experts, Electrostatic Notes for JEE are accurate and follow the JEE syllabus closely.

• With concise and focused content, students can feel more prepared and confident when tackling Electrostatics questions in JEE.

Other Important Links for JEE Main 2025 Electrostatics

Discover the links of extra resources beyond JEE Main 2025 Electrostatics notes. Check out other important links that open doors to learning, practice papers, mock tests, and insights. Boost your readiness, conquer challenges, and embrace success by using these resources made just for JEE Main 2025.

Here are the links for the additional resources of JEE Main 2025:

Enhance Your Results with Vedantu’s JEE Main Notes

As you work hard to do well in JEE Main 2025, think of Electrostatics Notes as your helpful friend. They simplify hard things, show what's important, and let you practice, which improves your study. Vedantu's JEE Main notes help you, and you'll understand things, solve problems without fear, and do well in the exam. Get the Electrostatics Revision Notes for FREE to get better and succeed in JEE Main 2025.

JEE Main Physics Notes: Chapter-wise links 2025

Download for Free and Learn JEE Main Physics Chapter-wise Notes. Get the links from the table below:

Download Subject-wise JEE Notes for JEE Main

Get the links to download the subject-wise JEE Main Notes PDF for FREE from the table below.