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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Physics Formulas for Class 11 Chapter 3 Motion in a Straight Line
Last modified on:3 years agoReading Time:8MinutesHere we are providing important Physics Formulas for Class 11 Students. These formulas are useful for every student studying physics. Learning physics formulas is important for exams because they provide a compact and precise way of expressing the fundamental concepts and laws of physics. They allow you to quickly recall the…
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Case Study Questions for Class 12 Maths Chapter 9 Differential Equations
Last modified on:3 years agoReading Time:3MinutesCase Study Questions for Class 12 Maths Chapter 9 Differential Equations Read the following text and answer the following questions on the basis of the same: The rate of increase in the number of bacteria in a certain bacteria culture is proportional to the number present. Given that the number triples…
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Case Study Questions for Class 12 Maths Chapter 8 Applications of Integrals
Last modified on:3 years agoReading Time:3MinutesCase Study Questions for Class 12 Maths Chapter 8 Applications of Integrals Case Study Questions: Question 1: Read the following text and answer the following questions on the basis of the same: In the figure O (0, 0) is the centre of the circle. The line y = x meets the…
