Electrostatics

Electric charges, electric force, electric field, potential and capacitors explained in a simple, student-friendly way.

1.Introduction to Electrostatics
A simple explanation of electrostatics, the study of charges at rest, and how electric forces act even without contact.
2.Electric Charge
Understand what electric charge is, types of charge, and how charged objects interact in daily life.
3.Charging by Friction, Contact and Induction
Learn the three basic methods of charging objects with easy real-life examples.
4.Properties of Electric Charge
Know the fundamental properties like quantisation, conservation and additivity of electric charge.
5.Coulomb’s Law
A beginner-friendly explanation of the law that describes the force between two charges.
6.Superposition Principle
Understand how multiple electric forces combine to give a single net force.
7.Electric Field
Learn what an electric field is and how it shows the influence a charge has on the space around it.
8.Electric Field Lines
Understand electric field lines, their properties, and how they help us visualise electric fields.
9.Electric Flux
A simple explanation of electric flux as the measure of electric field passing through a surface.
10.Gauss’s Law
Learn Gauss’s law in simple words and how it helps calculate electric fields easily.
11.Applications of Gauss’s Law
Understand how Gauss’s law is used to find electric fields of charged spheres, cylinders and planes.
12.Electric Potential
Learn what electric potential means and how it tells us the energy per unit charge.
13.Electric Potential Difference
Simple explanation of potential difference, the ‘push’ that causes charges to move.
14.Electric Potential Due to a Point Charge
Understand how to calculate the potential around a single point charge.
15.Equipotential Surfaces
Learn what equipotential surfaces are and why no work is done when moving on one.
16.Electric Dipole
Understand dipoles, dipole moment and how dipoles behave in an electric field.
17.Electric Field of an Electric Dipole
Learn how to find the electric field produced by a dipole in simple terms.
18.Torque on an Electric Dipole
Understand how a dipole experiences torque when placed in an electric field.
19.Capacitance
Learn what capacitance means and how capacitors store electric charge.
20.Capacitors and Their Combinations
Understand how capacitors are connected in series and parallel and how their net capacitance is calculated.
21.Energy Stored in a Capacitor
Learn how capacitors store energy and how to calculate it using simple formulas.
22.Dielectrics and Polarisation
Understand how insulating materials behave in an electric field and how they affect capacitance.