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 Class 8 Science Chapter 10 Reaching the Age of Adolescence
Last modified on:3 years agoReading Time:3MinutesCase Study Questions for Class 8 Science Chapter 10 Reaching the Age of Adolescence Here we are providing case study questions for CBSE Class 8 Science Chapter 10 Reaching the Age of Adolescence. Case Study Questions Question 1: Read the given passage and answer the following questions. The changes which occur…
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Case Study Questions for Class 8 Science Chapter 9 Reproduction in Animals
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 8 Science Chapter 9 Reproduction in Animals Here we are providing case study questions for CBSE Class 8 Science Chapter 9 Reproduction in Animals. Case Study Questions Question 1: Read the passage carefully and answer the questions that follow- For the continuity of life, all living…
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Case Study Questions for Class 8 Science Chapter 7 Conservation of Plants and Animals
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 8 Science Chapter 7 Conservation of Plants and Animals Here we are providing case study questions for CBSE Class 8 Science Chapter 7 Conservation of Plants and Animals. Case Study Questions Question 1: Read the passage and answer the question given below. A great variety of…
