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:5 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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Important Derivations for Class 11 Physics Chapter 4 Motion in a Plane
Last modified on:3 years agoReading Time:7MinutesImportant Derivations for Class 11 Physics Chapter 4 Motion in a Plane Here we are providing important derivations for class 11 Physics Chapter 4 Motion in a Plane. This chapter is also called as Motion in 2D. So here we are presenting derivations for Motion in 2D. Derivation 1: Time of…
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Tyndall effect
Last modified on:3 years agoReading Time:8MinutesWhat is Tyndall effect? The Tyndall effect, also known as Tyndall scattering, is a phenomenon observed when light is scattered by colloidal particles or small particles suspended in a transparent medium. This effect is named after the 19th-century British physicist John Tyndall, who extensively studied the scattering of light by various…
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Important Derivations for Class 11 Physics Chapter 3 Motion in a Straight Line
Last modified on:3 years agoReading Time:3MinutesImportant Derivations for Class 11 Physics Chapter 3 Motion in a Straight Line Here we are providing important derivations for Class 11 Physics Chapter 3 Motion in a Straight Line. Motion in a Straight Line or Motion in 1D derivations for class 11 Physics. (1) Derivation of Kinematical Equations Using Calculus…
