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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MCQ Questions for Class 11 Physics Chapter 4 Motion In A Plane
Last modified on:4 years agoReading Time:19MinutesMCQ Questions for Class 11 Physics Chapter 4 Motion In A Plane Q.1. Which of the following conditions are sufficient and essential for a quantity to be a vector?(a) Magnitude and direction(b) Magnitude and addition, subtraction, multiplication by ordinary rules of algebra(c) Magnitude, direction, and addition, subtraction multiplication and division by…
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JEE Advanced MCQ Questions with Explanations
Last modified on:3 years agoReading Time:5MinutesJEE Advanced is an entrance exam conducted in India for aspirants seeking admission to the Indian Institutes of Technology (IITs). It is really a challenging exam for anybody who wishes to study at an IIT, which can be understand by the fact that only 2.5 lakh candidates qualify to appear for…
