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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Class 12 Economics PPT for Online Teaching
Last modified on:3 years agoReading Time:2MinutesHere we are providing class 12th Economics PPTs. Make your online teaching interesting with our interactive PowerPoint presentations for Economics . A must buy for teachers teaching online. Class 12 Economics PPT for Online Teaching Get PowerPoint presentations for complete Class 12 Economics. These PPTs are very useful for teaching purpose. These…
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Download Free Assignments for Class 11 Chemistry Chapter 2 Atomic Structure
Last modified on:4 years agoReading Time:3MinutesWe are providing free Assignments for CBSE Class 11 Chemistry in PDF format. All students studying in class 11 should download the assignments provided here and use them for chapter practice. We are providing both subjective and objective type assignments. Students can also print the assignment after downloading. These assignments are…
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Extra Questions for Class 10 Science Chapter 4 Carbon and Its Compounds
Last modified on:4 years agoReading Time:4MinutesExtra Questions for Class 10 Science Chapter 4 Carbon and Its Compounds Q1. Why does carbon forms large number of compounds? Show Answer Answer: Carbon forms large number of compounds because of tetravalency and catenation property. Tetravalency – Carbon has valency 4, to attain noble gas configuration carbon share its valence…
