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:5 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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Mathematical Tools for Physics
Last modified on:3 years agoReading Time:5Minutes[PDF] Download Mathematical Tools for Physics Class 11 Physics requires the use of several mathematical tools to understand and solve problems related to various topics. Here are some of the important mathematical tools that are used in Class 11 Physics: Overall, these mathematical tools play a crucial role in understanding and…
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CBSE Class 11 Physics Syllabus 2023-24
Last modified on:3 years agoReading Time:32Minutes[PDF] Download CBSE Class 11 Physics Syllabus 2023-24 The CBSE syllabus for Class 11 Physics is an extremely valuable resource for students who want to excel in their studies. This syllabus not only provides information on the different topics and subtopics that are covered in the CBSE Physics curriculum, but it…
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Best Books for JEE Advanced Preparation
Last modified on:3 years agoReading Time:9MinutesBest Books for JEE Advanced Preparation If you are dreaming of becoming a successful engineer and aiming for a dazzling career in the field of engineering, then Joint Entrance Examination (JEE) is your gateway to some of the best institutions in India. With top courses in engineering, cracking JEE is a…
