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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Quick Revision Notes for Class 10 Maths Chapter 1 Real Numbers
Last modified on:3 years agoReading Time:11MinutesHere we are providing Quick Revision Notes for Class 10 Maths Chapter 1 Real Numbers. Students are advised to check out these points to score better in exams. Quick Revision Notes for Class 10 Maths Chapter 1 Real Numbers Why Class 10 Maths Revision Notes are Necessary? Class 10 Maths revision…
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Case Study Questions for Class 12 Maths Chapter 3 Matrices
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 12 Maths Chapter 3 Matrices Case Study Questions: Question 1: A company produces three products every day. Their production on certain day is 45 tons. It is found that the production of third product exceeds the production of first product by 8 tons while the total…
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Case Study Questions for Class 12 Maths Chapter 2 Inverse Trigonometric Functions
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 12 Maths Chapter 2 Inverse Trigonometric Functions Case Study Questions: Question 1: The Government of India is planning to fix a hoarding board at the face of a building on the road of a busy market for awareness on COVID-19 protocol. Ram, Robert and Rahim are…
