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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Revision Notes for Class 12 Business Studies Chapter 2 Principles of Management
Last modified on:3 years agoReading Time:27MinutesRevision Notes for Class 12 Business Studies Chapter 2 Principles of Management Here we are providing Revision Notes for Class 12 Business Studies Chapter 2 Principles of Management. These are the important points related to the chapter. Students should remember these points. CONCEPT OF PRINCIPLES OF MANAGEMENT The principles of management…
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Revision Notes for Class 12 Business Studies Chapter 1 Nature and Significance of Management
Last modified on:3 years agoReading Time:27MinutesRevision Notes for Class 12 Business Studies Chapter 1 Nature and Significance of Management Here we are providing Revision Notes for Class 12 Business Studies Chapter 1 Nature and Significance of Management. These are the important points related to the chapter. Students should remember these points. CONCEPT OF MANAGEMENT Management is…
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Numerical Problems Based on Class 11 Physics Friction
Last modified on:3 years agoReading Time:6MinutesFriction Whenever a body moves or tends to move over the surface of another body, a force comes into play which acts parallel to the surface of contact and opposes the relative motion. This opposing force is called friction. Angle of friction The angle of friction may be defined as the…
