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 7 Maths Chapter 6 The Triangles and Its Properties
Last modified on:3 years agoReading Time:4Minutes[Download] Assertion Reason Questions for Class 7 Maths Chapter 6 The Triangles and Its Properties Here we are providing assertion reason questions for CBSE Class 7 Maths Chapter 6 The Triangles and Its Properties Related Posts What is Assertion Reason Questions for Class 7 Maths? Assertion-reason questions are a type of…
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Editable Study Materials for AFCAT
Last modified on:3 years agoReading Time:9Minutes[Download] Editable Study Materials for AFCAT Greetings to all teachers and coaching institutes! Finding editable study materials specifically tailored for AFCAT might be a bit challenging compared to study materials for boards or other examinations. Here is a great news for you! We are delighted to present our latest offering –…
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Assertion Reason Questions for Class 7 Science Chapter 18 Waste Water Story
Last modified on:3 years agoReading Time:15Minutes[Download] Assertion Reason Questions for Class 7 Science Chapter 18 Waste Water Story Here we are providing assertion reason questions for Chapter 18 Waste Water Story. Directions: The question below consists of an assertion and a Reason. Use the following key to choose the appropriate answer.(a) Both A and R are…
