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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CBSE 11 Phy Test Paper Work, Energy & Power
Last modified on:5 years agoReading Time:6MinutesTEST CLASS XI WORK, ENERGY & POWER Very Short Answer Type Questions: [ 1 Marks Questions ] Q1. What is the work done when a body is moved horizontally along a frictionless surface? Q2. What is the work done on a body moving in a circular path? Q3. Define 1 watt. Q4.…
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NEET Physics Kinematics (Graphical Questions)
Last modified on:4 years agoReading Time:4Minutes Here we are providing NEET Physics Graphical Questions for Kinematics. Most of the time students gets confused while solving graphical questions based on kinematics. we have provided enough problems here so that students can master the concepts of graph. This will help students to understand the concept well. NEET Physics…
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NEET Phy COM (Study Notes)
Last modified on:5 years agoReading Time:6MinutesCONTENTS Centre of mass of a two-particle system; Centre of mass of a rigid body; Velocity of Centre of Mass; Acceleration of Centre of Mass; Some Important Points CENTRE OF MASS It is point in a system which moves as if whole mass of the system is concentrated at the point…
