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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Revision Notes for Class 11 Physics Surface Tension
Last modified on:3 years agoReading Time:2MinutesHere we are providing revision notes for class 11 physics surface tension. This revision notes covers all important points and formulas of the chapter. Tips and Tricks are also included. These are the most preferred revision notes. It is very important for a student to make proper revision notes of the…
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Case Study Questions for Class 11 Physics Chapter 15 Waves
Last modified on:3 years agoReading Time:5MinutesCase Study Questions for Class 11 Physics Chapter 15 Waves Case Study Questions: Question 1: Transverse and Longitudinal Waves Transverse waves forms if the particles of the medium vibrate at right angle to the direction of wave motion energy propagation, the wave is called transverse wave. These are propagated as crests…
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Case Study Questions for Class 11 Physics Chapter 14 Oscillations
Last modified on:3 years agoReading Time:5MinutesCase Study Questions for Class 11 Physics Chapter 14 Oscillations Case Study Questions: Question 1: Simple Harmonic Motion Simple harmonic motion is the simplest form of oscillation. A particular type of periodic motion in which a particle moves to and fro repeatedly about a mean position under the influence of a…
