# Category Physics Class – 12

## Coulomb’s law, definition, statement, key features, and vector form

Coulomb’s law Coulomb’s Law which is also called inverse square law is the experimental law of physics, which quantify the electrical force between the two static electrical charges, which are separated by some distance r. The force between the two static…

## Methods of Charging a body class 12

In this short piece of article, we will discuss different methods of charging a body. So let’s get started… Methods of charging a body A body can be charged by various means such as – Charging by friction Charging by…

## Electric Charges, types, units, and properties

You must have seen that if we rubbed any plastic pen with our hair then it start attracting some small pieces of paper. And you guys must have performed this too. But have you ever wondered why this happens, after rubbing…

## AC generator – working principles, construction, parts, and induced EMF

AC generator Introduction Imagine you have a smartphone and your smartphone is about to be discharged and you are notified that electrical authorities are gonna be power cut for 3 days in your locality due to a major short circuit…

## Why does wires get hot or even melts, when a high current flow through them.?

HOW DOES RESISTANCE PRODUCED IN WIRES? Resistance is the very important term/topic of current electricity. Without resistance imagination of electric physics is just a time waste. So today we will talk about resistance in detail , so tuned with us…

## what is potential difference? | Why electrons move when we supply electricity?

The concept of potential difference is very important topic of current electricity. If you didn’t know or understand this topic, then it is very difficult for you to give the explaination of the question, why does electrons move in electrical…

## ALTERNATING CURRENT fast revision notes for IIT JEE | quick concept booster.

ALTERNATING CURRENT *. It is the current which varies in magnitude continuously and changes its direction alternatively and periodically. It is represented as , I = I0sinωt , where I0 is the maximum value of AC current called as peak…

## ELECTROMAGNETIC INDUCTION notes for IIT JEE/ NEET , AIIMS .

ELECTROMAGNETIC INDUCTION Electromagnetic induction is a very important phenomenon of electromagnetism. It is a phenomenon in which EMF is produced in the coil, whenever magnetic flux linked with the coil changes. The produced EMF is called induced EMF and current…