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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Online Test Series for CBSE Term 1 Examination for Class 9 to 12
Last modified on:4 years agoReading Time:20MinutesOnline Test Series for CBSE Term 1 Examination for Class 9 to 12 Are you worried about your CBSE Term 1 Exams? If yes, then you have come to the right place. Here, we are providing online test series based on CBSE term 1 Examination for Class 9 to Class 12 studying students. The…
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Case Study and Passage Based Questions for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants
Last modified on:4 years agoReading Time:4MinutesIn CBSE Class 12 Biology Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.…
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Assertion and Reason Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry
Last modified on:3 years agoReading Time:6MinutesAssertion and Reason Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:(a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation…
