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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Sets Formulas For Class 11
Last modified on:4 years agoReading Time:8MinutesSets Formulas For Class 11 Here we are providing Sets Formula For Class 11 Maths. Practice sets problems based on these formulas. Important terms and definitions are also included so that you can revise them in a very short time. A set is the mathematical model for a collection of different…
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MCQ Questions for Class 12 Biology Chapter 14 Ecosystem
Last modified on:4 years agoReading Time:10MinutesMCQ Questions for Class 12 Biology Chapter 14 Ecosystem Here we are providing mcq questions for class 12 biology chapter 14 ecosystem. These questions are prepared by subject expert and are based on latest syllabus prescribed by board. Students can practice these questions to score better marks in their exams. Q.1.…
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MCQ Questions for Class 12 Biology Chapter 13 Organisms and Populations
Last modified on:4 years agoReading Time:12MinutesMCQ Questions for Class 12 Biology Chapter 13 Organisms and Populations Here we are providing MCQ questions for Class 12 Biology Chapter 13 Organisms and Populations. These questions are prepared by subject expert and is according to the latest pattern prescribed by CBSE board. Students can practice these questions to score…
