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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Case Study Questions for CBSE Class 12 History
Last modified on:2 years agoReading Time:8Minutes Case Study Questions for CBSE Class 12 History 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 History. This is crucial info for students because it gives them a heads-up on changes…
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Assertion Reason Questions for CBSE Class 11 Geography
Last modified on:2 years agoReading Time:11Minutes Assertion Reason Questions for CBSE Class 11 Geography Here we are providing assertion reason questions for CBSE Class 11 Geography. Chapterwise link for assertion reason questions are provided below. Taking a close look at the CBSE Sample Papers and Marking Scheme, we have pointed out the important topics for CBSE…
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Important Questions for CBSE Class 11 Entrepreneurship
Last modified on:2 years agoReading Time:5Minutes Important Questions for CBSE Class 11 Entrepreneurship Here we are providing important questions for cbse class 11 entrepreneurship. All chapters are covered. Different type of questions are provided for better exam preparation. Entrepreneurship CBSE Class 11 The syllabus is divided into seven units: (i) Entrepreneurship: Concept and Functions (ii) An Entrepreneur…
