Electrostatics – Hub of related Posts

Here goes the list of our posts on Electrostatics and related topics and subtopics.

Comparison between electric field and magnetic field

A table of the comparisons between the electric field and the magnetic field is shown below. Electric Field Magnetic Field An electric field is caused by charges. But, a magnetic ...
Continue Reading

Torque on an electric dipole – revision notes with definition, & equation

Here, we will study the concepts and formula of the torque on an electric dipole. Torque on an electric dipole - how is it generated? Two equal and opposite charges ...
Continue Reading

Identically Charged spheres of the same mass vertically suspended are in equilibrium – derive formulas

Say, two Identically Charged spheres of the same mass are suspended vertically and they got to be in equilibrium. Now, here we will derive the formulas related to this equilibrium ...
Continue Reading

Lami’s theorem to solve numerical problems of electrostatics

Lami's theorem is used to solve numerical problems of electrostatics when electrostatic forces are in equilibrium. To solve some questions of electrostatics, Lami's theorem is very useful. Lami's theorem (when ...
Continue Reading

Examples of static electricity in everyday life & sticking a balloon to the wall

In this post, we will discuss and list down different examples of static electricity in everyday life. Also, we will find how sticking a balloon to the wall is caused ...
Continue Reading

Derive the Formula of Electric Potential Difference from the energy difference in an electric field

In this post, we will see how to derive the Formula of Electric Potential Difference from the concept of energy difference in an electric field. We will derive 2 equations ...
Continue Reading

Electric potential energy – study notes

In this post, we will see how a charge gains or loses Electric potential energy when it moves around in an electric field. We will also derive the equation of ...
Continue Reading

How to determine Relative strength & sign of charges from lines of force

In this post, we will find How to determine the Relative strength & sign of charges from lines of force seen in the drawing or map of the electric field ...
Continue Reading

Electric Field due to a Uniformly Charged Spherical Shell & solid sphere

In this post, we will derive (1) the expression of the Electric Field due to a Uniformly Charged Spherical Shell, and (2) the expression of the Electric Field due to ...
Continue Reading

Electric Field due to a Long Line Charge – formula derivation

A line charge is in the form of a thin charged wire of infinite length with a uniform linear charge density σ (charge per unit length). Let there be a ...
Continue Reading

Electric Field due to a Point Charge – derivation of the formula

Let us apply Gauss’ Law to calculate electric field due to a point charge.Draw a spherical surface of radius r with a point charge at the center of the sphere, ...
Continue Reading

Dipole & Dipole Moment – definition, formula

In this post, we will find out what exactly an electric dipole is. We will also define dipole moment and find out the formula of dipole moment. Dipole | Electric ...
Continue Reading

How static electricity is used in Laser Printer?

Laser printers use static electricity to print documents. Let's see how it is done. Inside the printer, an object called the image drum is given a positive charge. A laser ...
Continue Reading

How to solve Numerical problems based on Coulomb’s Law

In this post, we will solve a few numerical problems using Coulomb's law in a step-by-step approach. Before that, we will quickly revise this law and the equation related to ...
Continue Reading

Gauss’ Law – statement & derivation of equation

Gauss’ law was formulated by the German mathematician and physicist Carl Friedrich Gauss (1777–1855). In presenting Gauss’ law, it will be necessary to introduce a new idea called electric flux ...
Continue Reading

The Millikan Oil-Drop Experiment

Robert Millikan measured e, the magnitude of the elementary charge on an electron, and demonstrated the quantized nature of this charge with the help of a brilliant set of experiments ...
Continue Reading

The Van de Graaff Generator – principle of electrostatics

Let's find out what the Van de Graaff Generator actually is and what principle acts behind it. It's a scientific device based on the principles of electrostatics. Experimental results show ...
Continue Reading

Static Discharge and Lightning | static electricity FAQ

In this post we will find what static discharge is and how lightning occurs. Also we will answer a few FAQs on static electricity. What is static discharge - can ...
Continue Reading

How does polarisation help charged objects exert force on insulators?

Unlike conductors, the electrons in insulators (non-conductors) are bound to the atoms of the insulator and cannot move around freely through the material. However, a charged object can still exert ...
Continue Reading

[pdf notes] Electrostatics Grade 10 & grade 11 Notes download | physics notes on Electrostatics

This Electrostatics [PDF notes] is primarily for the 10th & 12th grade physics syllabus of different international boards including ICSE, CBSE, etc. We hope, the students appearing for IGCSE, AP Physics, GCSE, ...
Continue Reading

Static Electricity & Charge – Important Questions and Answers

This post is going to cover Static electricity, electrostatic charge, and related topics with important questions and answers. This Q&A set will be helpful for students of different boards including ...
Continue Reading

How does an electroscope detect charge and tell the sign of a charge?

In this post, we will first see what an electroscope is and then we will discuss: - how an electroscope can help to detect the presence of a charge in ...
Continue Reading

electronvolt – what is electronvolt(eV) and how is eV related to Joule?

The SI unit of energy joule is too large a unit of energy for the microscopic world. A more convenient unit of energy for the microscopic world is the electronvolt, ...
Continue Reading

Numerical problems based on emf and potential difference

Let's solve 2 numerical problems based on emf and potential difference. Numerical problems based on emf and potential difference 1] If the emf of a battery is 9 V, how ...
Continue Reading

State the difference between emf and potential difference with the energy view

The cell uses chemical energy to place the charges in a position of high potential i.e electrical potential energy is stored in a cell. As the charges flow through the ...
Continue Reading

How to define Voltages, Electromotive Force (emf), and Potential Difference (PD)?

Voltages, Electromotive Force (emf), and Potential Difference (PD) - These 3 terms are often used while we discuss electrical circuits. Hence exactly knowledge about these certainly helps us to understand ...
Continue Reading

How Strong is the Coulomb Force Relative to the Gravitational Force?

How Strong is the Electrostatic or Coulomb Force Relative to the Gravitational Force? To find this we will calculate the electrostatic force and the gravitational force between an electron and ...
Continue Reading

What is an Electric Field? | Formula, direction & Unit | derivation | Electric force & Potential

A space that causes charged particles to accelerate is said to have an Electric Field. By definition, the electric field (E) at a given point in the space surrounding a ...
Continue Reading

What Is Coulomb’s Law? | Electric force formula, direction

Coulomb’s law gives the electric force acting between two point charges. A point charge is a pointlike object with a nonzero electric charge. Coulomb’s law says that the force between ...
Continue Reading

How to compare Electric Force and Gravity with similarities and differences?

This topic is a comparative study between the Electric force and Gravity. The electric force is related to electric charges and Gravity is applicable between any two masses. Similarities between ...
Continue Reading

Electric Charge, Law of Conservation of Electric Charge and Triboelectric Charging – facts you must know

In this post, we will discuss the concepts of triboelectric charging. Before taking that, we will quickly cover the electric charge, types of charges (positive charge and negative charge), and ...
Continue Reading
Scroll to top