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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WAVE FRONT, VARIOUS TYPES OF WAVE FRONT AND RAYS
Last modified on:5 years agoReading Time:5MinutesWAVE FRONT, VARIOUS TYPES OF WAVE FRONT AND RAYS • Wavefront The locus of all the particles vibrating in the same phase is known as wavefront. or It is the continuous locus of all such particles of the medium which are vibrating in the same phase of oscillation at any instant.…
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Wave Theory of Light
Last modified on:5 years agoReading Time:12MinutesLIGHT The physical cause, with the help of which our eyes experience the sensation of vision, is known as light or the form of energy, which excites our retina and produce the sensation of vision, is known as light. PROPERTIES OF VISIBLE LIGHT • No material medium is required for the…
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CBSE 12 Physics Topic-wise error analysis
Last modified on:5 years agoReading Time:1Minute
