Table of Contents
Charging of Insulators
Since charge cannot flow through insulators, neither conduction nor induction can be used to charge, insulators, so in order to charge an insulator friction is used. Whenever an insulator is rubbed against a body exchange of electrons takes place between the two. This results in appearance of equal and opposite charges on the insulator and the other body. Thus the insulator is charged.
For example rubbing of plastic with fur, silk with glass causes charging of these things.
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Frictional Electricity
Last modified on:3 years agoReading Time:10Minutes What is frictional electricity? Frictional electricity, also known as static electricity, is the type of electricity that results from the friction or rubbing of two objects together. When two objects are rubbed against each other, the friction between them can cause the transfer of electrons from one object to the…
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Alternating Current
Last modified on:3 years agoReading Time:24Minutes What is Alternating Current (A.C.)? Alternating Current (AC) is an electrical current that periodically reverses direction in a circuit. Unlike Direct Current (DC), which flows only in one direction, AC constantly changes its polarity and magnitude over time. Explanation: In an AC circuit, electrons periodically switch direction, moving back and…
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Terminal Velocity
Last modified on:3 years agoReading Time:13Minutes What is Terminal Velocity? Terminal velocity is the constant maximum speed reached by an object in free fall or falling through a fluid (such as air or water) when the force of air resistance or fluid resistance becomes equal in magnitude and opposite in direction to the force of gravity…
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Numerical Problems Based on Electric Charge for Class 12 Physics
Last modified on:6 months agoReading Time:20MinutesElectric Charge An electric charge is a fundamental property of matter that describes the amount of electrical energy associated with an object. It is a fundamental property of particles such as protons, electrons, and ions, which are the building blocks of matter. Electric charge is either positive or negative. Protons carry…
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Numerical Problems Based on Electric Dipole for Class 12 Physics
Last modified on:6 months agoReading Time:23MinutesElectric Dipole An electric dipole is a system consisting of two electric charges of equal magnitude but opposite sign that are separated by a distance. The product of positive charge and the separation between the charges is referred to as the dipole moment, which is a vector quantity pointing from the…
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Numerical Problems Based on Electric Field for Class 12 Physics
Last modified on:3 years agoReading Time:7MinutesElectric Field An electric field is a vector field that describes the force exerted by a charged object on other charged objects in its vicinity. It is a fundamental concept in electromagnetism and is essential for understanding the behavior of electrically charged particles and systems. The electric field at a given…
