Electrostatic charge distributions – types and facts

All substances are neutral by nature. They can be charged artificially or by some natural phenomena like lightning. In the first article on electrostatics, We learned about electric charges and their production. We became to know that the electric charges do not have the same distribution in differently shaped bodies. Because all substances don’t have … Read more

Electrostatic force – equation, properties, example

If we bring two electric charges close to each other, they exert a force on each other. This force is known as electrostatic or electric force. It is a natural property of electric charges. Every electric charge or charged body exerts electric force on another charged body near it. In this article, I’m going to … Read more

Electrostatic Potential and Potential difference

Electrostatics Article – 7 Let a source charge Q produces an electric field E and a positive test charge q is placed at a distance r from the source charge. Coulomb’s law gives the expression for the electrostatic force on the positive charge q due to the source charge Q. Now, if we want to … Read more

How can two Metallic spheres be charged by induction?

All bodies are neutral in nature. Charged bodies are created either artificially or by natural phenomena like lightning. There are three processes to produce electric charge artificially – Friction, Induction and Conduction. In this article, we will learn how to produce electric charge by induction process. Here, I am going to explain how can two … Read more

Linear charge density – formula, calculation | Line charge

A continuously charged conductor can have three types of distribution of electric charges given to it. We already have discussed surface charge density and volume charge density in other two articles. The third one is the Line charge distribution. Now, what is linear charge density? How do you calculate it? In this article, we are … Read more

Volume charge density formula of sphere, cylinder

A three dimensional conductor can have three types of charge distributions. These are Line charge distribution, surface charge distribution and volume charge distribution. Obviously, there will be three types of charge densities for these three distributions. In other two articles, we have discussed the Linear charge density and surface charge density of different conductors. In … Read more

Voltage drop across capacitor – formula & concepts

A Capacitor is one of the important components in an electrical circuit. We have discussed capacitors and their combinations in other articles. Like other components (resistors, inductors), a capacitor also offers opposition to the current flow (Direct current only) through it. From Ohm’s law, we get an expression for the voltage drop across a resistor. … Read more

MCQ on electric potential for class 12 CBSE

In this article, we are going to discuss MCQ questions on electric potential for class 12. These multiple choice questions on electrostatic potential will be helpful for class 12 students of CBSE board and all other boards. Chapter-2: Electrostatic potential and Capacitance MCQ on electric potential 1. If V be the electric potential at the … Read more

MCQ on electric field for CBSE class 12 chapter 1

We have already learned electric charges and electric field in details. Now, its time to practice some multiple choice questions on electric charges and electric fields for class 12 physics. It is very helpful for board exams and NEET exam. This topic is included in class 12 NCERT physics chapter 1 for CBSE and other … Read more

Formula for energy stored in a capacitor – Derive

A capacitor can store electric charge and releases them whenever it is required. But how can a capacitor store energy in it? What is the formula of energy stored in a capacitor? The application of an external voltage across a capacitor produces an electric field inside it. This electric field forces the charges to move … Read more