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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MCQ Questions for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants
Last modified on:4 years agoReading Time:12MinutesMCQ Questions for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants Q.1. A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is(a) plant is dioecious and bears only pistillate flowers(b) plant is dioecious and bears both pistillate and staminate…
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Challenging Physics Problems Based on Work, Energy, Power and Conservation Laws for JEE Advanced
Last modified on:4 years agoReading Time:7Minutes This series contains exhaustive collection of challenging problems of all the varieties being asked in JEE (Advanced) Examinations. Here, we have provided collection of the best possible problems for IIT-JEE (JEE Advanced) based on topic Work, Energy, Power and Conservation Laws. Challenging Physics Problems Based on Work, Energy, Power and…
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Challenging Physics Problems Based on Laws of Motion for JEE Advanced
Last modified on:4 years agoReading Time:5MinutesThis series contains exhaustive collection of challenging problems of all the varieties being asked in JEE (Advanced) Examinations. Here, we have provided collection of the best possible problems for IIT-JEE (JEE Advanced) based on topic Laws of Motion. Challenging Physics Problems Based on Laws of Motion for JEE Advanced with Solutions…
