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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NCERT Solutions for Class 9 Maths
Last modified on:5 years agoReading Time:21MinutesChapter 1 Number Systems Number Systems Class 9 Ex 1.1 Number Systems Class 9 Ex 1.2 Number Systems Class 9 Ex 1.3 Number Systems Class 9 Ex 1.4 Number Systems Class 9 Ex 1.5 Number Systems Class 9 Ex 1.6 Chapter 2 Polynomials Polynomials Class 9 Ex 2.1 Polynomials Class 9…
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NCERT Solutions for Class 9 Science
Last modified on:5 years agoReading Time:3MinutesNCERT Solutions for Class 9 Science are provided for the students to help them in their preparation. The best way to study CBSE Class 9 Science is through NCERT. Don’t just mug up the concepts instead go through all the concepts thoroughly. Make notes and practice as much as you can. NCERT…
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COULOMB’S LAW
Last modified on:3 years agoReading Time:18MinutesCOULOMB’S LAW: Two point electric charges q1 and q2 at rest, separated by a distance r exert a force on each other whose magnitude is given by If between the two charges there is free space then Where ε0 is the absolute electric permittivity of the free space and ε0 =…
