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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Extra Questions for Class 12 Biology Chapter 4 Reproductive Health
Last modified on:4 years agoReading Time:10MinutesExtra Questions for Class 12 Biology Chapter 4 Reproductive Health Here we are providing extra questions for class 12 biology. Here you will find extra questions for chapter 4 reproductive health. Students can read and practice these questions to score better marks in the exam. Q.1. A doctor has observed the…
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Extra Questions for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants
Last modified on:4 years agoReading Time:13MinutesExtra Questions for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants Here we are providing extra questions for class 12 biology. this post covers extra question for Chapter 2 Sexual Reproduction in Flowering Plants. Students can read and practice these questions to score better marks in the exam. Q.1.…
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MCQ Based on Kinematical Equations for NEET
Last modified on:4 years agoReading Time:8MinutesKinematical Equations If a body starts with velocity (u) and after time t its velocity changes to v, if the uniform acceleration is a and the distance travelled in time t is s, then the following relations are obtained, which are called equations of uniformly accelerated motion. The above equations are…
