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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Electric Field of a Line Charge
Last modified on:3 years agoReading Time:3MinutesElectric Field of a Line Charge Positive charge q is distributed uniformly along a line with length 2a, lying along the y-axis between y=–a and y=+a. We are here interested in finding the electric field at point P on the x-axis. Derivation of electric field due to a line charge: Thus,…
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Electric Field Lines
Last modified on:3 years agoReading Time:5MinutesElectric Field Lines Electric charges create an electric field in the space surrounding them. It is useful to have a kind of “map” that gives the direction and indicates the strength of the field at various places. Field lines, a concept introduced by Michael Faraday, provide us with an easy way…
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Human Ear
Last modified on:4 years agoReading Time:3MinutesHuman Ear The human ear, like that of other mammals, contains sense organs that serve two quite different functions: that of hearing and that of head and eye movements. Anatomically, the ear has three distinguishable parts: the outer, middle, and inner ear. How Human Ear Works? Different sounds produced in our surroundings are collected by…
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Capacitance Revision Notes for JEE Main Physics
Last modified on:4 years agoReading Time:2MinutesCapacitance Revision Notes for JEE Main Physics Here we are providing revision notes for JEE Main Physics Chapter Capacitance. This revision notes on capacitor covers all important facts and formulae. Students can use these revision notes for their last minute preparation. This helps in covering the whole chapter in just 15…
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[PDF] Download Revision Notes for Class 9 Science Chapter 8 Motion
Last modified on:4 years agoReading Time:3MinutesDownload Revision Notes for Class 9 Science Chapter 8 Motion A short revision notes of a chapters helps to cover all the important concepts and formula given in the chapter just before the exam. A revision note is basically an overview of complete chapter. This saves our precious time during exam…
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Organic Chemistry Important Reagents and Name Reactions
Last modified on:3 years agoReading Time:3MinutesOrganic Chemistry Important Reagents and Name Reactions What is Reagent? A compound or mixture which is added to a system in order to initiate or test a chemical reaction. Reagents are used to determine the presence and absence of specific chemical substances. List of Specific Name Reactions: The list of all…
