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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Assertion Reason Questions for Class 12 Physics Term 2 Exam
Last modified on:4 years agoReading Time:3Minutes We are providing assertion reason questions for class 12 physics based on term 2 syllabus. There are total 7 chapters included in cbse class 12 physics term 2 exams. Students can practice these questions for concept clarity and scoring better marks in their exam. Class 12 Physics Assertion Reason Questions…
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Quick Revision Notes for Class 12 Chemistry Term 1 Exam
Last modified on:4 years agoReading Time:1MinuteHere we are providing quick revision notes for class 12 chemistry term 1 examination. This revision notes are prepared strictly according to the latest reduced syllabus. This quick revision notes covers all the chapters included in class 12 chemistry term 1 syllabus. Students can use this revision notes for quick review…
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Class 10 Science PPT for Online Teaching
Last modified on:3 years agoReading Time:10MinutesWe are providing class 10 Science PPTs. Make your online teaching interesting with our interactive PowerPoint presentations for Science. A must buy for teachers teaching online. Get PowerPoint presentations for complete Science. These PPTs are very useful for teaching purpose. These Science PPTs based on class 10 syllabus are completely editable. So,…
