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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Case Study Questions for CBSE Class 12 Geography Chapter 5 Secondary Activities
Last modified on:2 years agoReading Time:7Minutes Case Study Questions for CBSE Class 12 Geography Chapter 5 Secondary Activities Taking a close look at the CBSE Sample Papers and Marking Scheme, we have pointed out the important topics for CBSE case study questions in Class 12 Geography. This is crucial info for students because it gives them…
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Case Study Questions for CBSE Class 12 Geography Chapter 4 Primary Activities
Last modified on:2 years agoReading Time:7Minutes Case Study Questions for CBSE Class 12 Geography Chapter 4 Primary Activities Taking a close look at the CBSE Sample Papers and Marking Scheme, we have pointed out the important topics for CBSE case study questions in Class 12 Geography. This is crucial info for students because it gives them…
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Case Study Questions for CBSE Class 12 Geography Chapter 3 Human Development
Last modified on:2 years agoReading Time:7Minutes Case Study Questions for CBSE Class 12 Geography Chapter 3 Human Development Taking a close look at the CBSE Sample Papers and Marking Scheme, we have pointed out the important topics for CBSE case study questions in Class 12 Geography. This is crucial info for students because it gives them…
