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 for a 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 another article, we have discussed the Linear charge density and surface charge density of different conductors. In this … Read more

Voltage drop across capacitor – formula and concepts

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

We know that a capacitor can store electric charge and can release them whenever it is required. So, a capacitor has the capacity to store electric charges. But, how can a capacitor store energy in it? What is the formula of energy stored in a capacitor? The application of voltage produces electric field and this … Read more

Capacitance of parallel plate capacitor with dielectric medium

We have discussed the basic things of a capacitor in previous article. That article covers the definition, construction, types, formula and uses of a capacitor. In this article, we are going to deal with a special type of capacitor. Here, we are to discuss the capacitance of parallel plate capacitor and its behavior in presence … Read more

Formula for capacitance of a capacitor | definition types

Capacitor is one of the most important circuit components. Capacitors can store electric charge or electric energy in it. A capacitor is nothing but a conductor or the combination of two conductors having equal and opposite charges. Now, what is the difference between a capacitor and a conductor? What makes the capacitor different from a … Read more

Gauss’s law of electrostatics – formula & derivation

In other articles, we learned that an electric charge can produce an electric field around it. Then we studied its effects and properties. Also, we became to know that charges feel Coulomb’s force due to the existence of the electric field. Now, we need a formula or equation to find the electric field produced by … Read more