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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ICSE Physics Class 10 Syllabus
Last modified on:8 years agoReading Time:29Minutes ICSE Physics Class 10 Syllabus There is one paper of two hours duration carrying 80 marks and Internal Assessment of practical work carrying 20 marks. The paper is divided into two sections: Section I (40 marks) and Section II (40 marks). Section I (compulsory) contains short answer questions on the entire…
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Class 10 Physics Study Notes Management of Natural Resources (16)
Last modified on:5 years agoReading Time:13MinutesNatural Resources : Anything in the environment ‘which can be used’ is called natural resource. For example, soil, air, water, forests, wildlife, coal and petroleum. Management of Natural Resources : It is the use of natural resources in such a way so as to avoid wastage and conserve them for future.…
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JEE Main 2019 Answer Key Solution
Last modified on:5 years agoReading Time:2MinutesJEE Main 2019 Paper with Answer & Paper with Solutions Date Shift Physics Chemistry Maths 09/01/2019 Shift 1 (9:30 AM – 12:30 PM) Download Download Download Shift 2 (2:30 PM – 05:30 PM) Download Download Download 10/01/2019 Shift 1 (9:30 AM – 12:30 PM) Download Download Download Shift 2 (2:30 PM…
