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.
-
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…
-
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…
-
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…
-
CBSE Class 12 Chemistry Revision Notes Chapter-2 Solutions
Last modified on:5 years agoReading Time:14MinutesSolution : A perfectly homogeneous mixture of two or more components is called solution. Solute : The component which is present in lesser amount or whose physical state is changed during the formation of solution is called solute. Solvent : The component which is present in larger amount and determines the…
-
CBSE Class 12 Physics Revision Notes Chapter-11 Dual Nature of Matter and Radiation
Last modified on:5 years agoReading Time:12MinutesElectron emission: The phenomenon of emission of electrons from the surface of a metal. The minimum energy needed by an electron to come out from a metal surface is known as “work function” of the metal. It is denoted by Φ0 or W0 and measured in electron volt (eV). Work function…
-
NEET Physics Class 12 Questions Chapter-1 Electric Charges and Fields
Last modified on:5 years agoReading Time:6MinutesQ.1. If a body has positive charge on it, then it means it has(1) Gained some protons (2) Lost some protons(3) Gained some electrons (4) Lost some electrons Sol. Answer (4)Due to lack of electron body get positive charge. Q.2. Sure check for presence of electric charge is(1) Process of induction…
