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 8 Controlling
Last modified on:3 years agoReading Time:9MinutesRevision Notes for Class 12 Business Studies Chapter 8 Controlling Here we are providing Revision Notes for Class 12 Business Studies Chapter 8 Controlling. These are the important points related to the chapter. Students should remember these points. INTRODUCTION The function of controlling is indispensable for achieving organisational goals. The function…
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Revision Notes for Class 12 Business Studies Chapter 7 Directing
Last modified on:3 years agoReading Time:32MinutesRevision Notes for Class 12 Business Studies Chapter 7 Directing Here we are providing Revision Notes for Class 12 Business Studies Chapter 7 Directing. These are the important points related to the chapter. Students should remember these points. INTRODUCTION Directing is the executive function of management. Direction is also referred to…
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Revision Notes for Class 12 Business Studies Chapter 6 Staffing
Last modified on:3 years agoReading Time:33MinutesRevision Notes for Class 12 Business Studies Chapter 6 Staffing Here we are providing Revision Notes for Class 12 Business Studies Chapter 6 Staffing. These are the important points related to the chapter. Students should remember these points. CONCEPT OF STAFFING In the simplest terms, staffing means, ‘Placing the right people…
