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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Conceptual Questions Based on Electromagnetic Induction
Last modified on:4 years agoReading Time:7MinutesQ.1. Will an induced emf develop in a conductor, when moved in a direction parallel to the magnetic field ? Solution. No, because the magnetic flux linked with the conductor does not change when it is moved parallel to the magnetic field. Moreover, the magnetic Lorentz force on the free electrons…
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Study Modules for NEET
Last modified on:3 years agoReading Time:3MinutesHere we are providing best study modules for NEET. This well-prepared study modules for NEET can help you to understand each chapter properly. Studying these professionally made study modules can help students to score excellent marks in their exam. All these chapter study modules are available in PDF and PageMaker Format.…
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Chapterwise MCQ Question Bank for JEE Main Chemistry with Answers
Last modified on:3 years agoReading Time:4MinutesChapterwise MCQ Question Bank for JEE Main Chemistry with Answers Here we are providing MCQ Questions for JEE Main Chemistry with Answers and Detailed Explanations. Get this question bank product for your institutes in editable format. This Question Bank containing more than 10,000 questions for JEE Main Chemistry is completely editable.…
