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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Topicwise Important Questions and Answers for Class 12 Physics Chapter 1 Electric Charges and Fields
Last modified on:4 years agoReading Time:2MinutesHere we are providing topicwise important questions with answers for class 12 physics chapter 1 electric charges and fields. Study notes of topics covered are also provided so that you can revise at the same time before doing the question answer. Topicwise Important Questions and Answers for Class 12 Physics Chapter…
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[PDF] Download NCERT Books for Class 12 Chemistry
Last modified on:6 months agoReading Time:8Minutes The National Council of Educational Research and Training (NCERT) publishes Chemistry textbooks for Class 12. Here we are providing the updated NCERT Books. The use of NCERT Books Class 12 Chemistry is not only suitable for studying the regular syllabus of various boards but it can also be useful for the candidates…
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[PDF] Download NCERT Books for Class 12 Maths
Last modified on:6 months agoReading Time:8Minutes The National Council of Educational Research and Training (NCERT) publishes Maths textbooks for Class 12. Here we are providing the updated NCERT Books. The use of NCERT Books Class 12 Maths is not only suitable for studying the regular syllabus of various boards but it can also be useful for the candidates…
