Class 12

Coulomb’s law describes the force that exists between two stationary, electrically charged particles, also known as electrostatic force. In 1785, Charles Augustin de Coulomb, a French physicist, published the equation for the repulsive or attractive force between two electrically charged bodies, commonly known as Coulomb’s law. Coulomb’s law states that the intensity of the electrostatic […]

Introduction In general Coulomb law is the mathematical definition of force among charged items. It was built in the 18th-century by French physicist Charles-Augustin de Coulomb, similar to Isaac Newton’s law of gravity. Both gravitational and electric forces are reduced with the square of the distance between objects, and both forces operate along a line

A charge is a property associated with and related to the matter. It is a physical property that experiences a specific force when placed in an electromagnetic or electric field. A charge experiences different electrical and magnetic effects. The SI unit of an electric charge is called Coulomb. French engineer Charles-Augustin de Coulomb first defined

When a rubber balloon is rubbed on hair, it develops the ability to attract items such as shreds of paper, etc. This occurs as a result of electric charges being discharged by rubbing insulating surfaces. Electric charge is a quality that exists with all fundamental particles, no matter where they are found.  When an electric

A charge is an elementary property of an object like mass. The charge is the fundamental source of the electric field, electric force, and electromagnetic wave. In 600 BC, the amber effect was discovered, which was explained by the famous Greek mathematician Thales of Miletus. Ambar, when rubbed with fur, attracts hair like light objects.

When we remove our synthetic clothes or sweaters from our bodies, a spark or crackling sound occurs, especially in dry weather. With feminine clothing, such as polyester sarees, this is nearly inescapable. Another form of electric discharge is lightning in the sky during thunderstorms. When we open a car door or grip the iron bar

Charging:  Charging of an object is possible in 3 ways:  By Friction  By conduction By induction. Here, in this article, we will be discussing charging by friction in detail. But before that, you must be aware of the fact that when a body loses electrons it becomes +vely charged and when a body gains electrons

In the 18ᵗʰ century, British scientist John Canton and Swedish professor John Carl Wicke discovered the phenomenon of Electrostatic Induction. When we bring a charged body near an uncharged object, equal and opposite charges are induced on the near-surface of the uncharged object. This phenomenon is called Electrostatic Induction.  Charged objects have electrostatic fields around

Charging by Contact Charging by contact is also known as charging by conduction. It is a method of charging. Any object will be charged only if there is a net excess or lack of electrons. This can be done in many ways other than charging by contact, such as charging by friction or charging by

Electric charges can be found not only in science, but also in people’s everyday lives. For example, rubbing dry hair with a ruler causes some hair strands to stand up, and this happens because electric charges are present everywhere in everything. The just-mentioned example involved electric charges that were temporarily charged. Protons, electrons, and neutrons