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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Conductors and Insulators
Last modified on:4 years agoReading Time:2MinutesConductors and Insulators Solids are mainly classified into two groups, conductors and insulators. In conductors, electric charges are free to move from one place to another, whereas in insulators they are tightly bound to their respective atoms. In an uncharged body, there are equal number of positive and negative charges. The…
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Electric Field Due to a Point Charge
Last modified on:3 years agoReading Time:1MinuteElectric Field Due to a Point Charge The electric field produced by a point charge q can be obtained in general terms from Coulomb’s law.First note that the magnitude of the force exerted by the charge q on a test charge q0 is then divide this value by q0 to obtain…
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Electric Field Due to a Charged Ring
Last modified on:3 years agoReading Time:4MinutesElectric Field Due to a Charged Ring A conducting ring of radius R has a total charge q uniformly distributed over its circumference. We are interested in finding the electric field at point P that lies on the axis of the ring at a distance x from its centre. We divide…
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CBSE Class 9 English Beehive Prose Chapter 1 The Fun They Had Summary
Last modified on:2 years agoReading Time:9Minutes CBSE Class 9 English Beehive Prose Chapter 1 The Fun They Had Summary IntroductionThis story is written by Isaac Asimov. It takes us to the future when computers will play a major role. Books and schools as we now know them now, will perhaps not exist then. The children will…
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Case Study Questions for CBSE Class 11 Geography Chapter 3 Interior of the Earth
Last modified on:2 years agoReading Time:9Minutes Case Study Questions for CBSE Class 11 Geography Chapter 3 Interior of the Earth 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 11 Geography. This is crucial info for students because it…
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CBSE Class 9 English Beehive Notes and Summary
Last modified on:2 years agoReading Time:4Minutes CBSE Class 9 English Beehive Notes and Summary Prose Chapter 1: The Fun They Had SummaryChapter 2: The Sound of Music SummaryChapter 3: The Little Girl SummaryChapter 4: A Truly Beautiful Mind SummaryChapter 5: The Snake and the Mirror SummaryChapter 6: My Childhood SummaryChapter 7: Reach for the Top SummaryChapter…
