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.
-
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…
-
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…
-
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…
-
MCQ Questions for Class 10 Science Chapter 6 Life Processes
Last modified on:3 years agoReading Time:34MinutesMCQ Questions for Class 10 Science Chapter 6 Life Processes CBSE Class 10 SCIENCE Question Type MCQ No. of Questions 80+ Useful for Class 10 Studying Students Class 10 Science Chapter 6 Life Processes MCQs with Answers Q.1. During respiration exchange of gases take place in(a) trachea and larynx (b) alveoli…
-
Case Study and Passage Based Questions for Class 12 Biology Chapter 3 Human Reproduction
Last modified on:4 years agoReading Time:4MinutesIn CBSE Class 12 Biology Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked. Here,…
-
Class 11 and 12 Chemistry PPT for Online Teaching
Last modified on:3 years agoReading Time:2MinutesClass 11 and 12 Chemistry PPT for Online Teaching Make your teaching interesting with our PowerPoint presentations for chemistry. A must buy for teachers teaching online. Get PowerPoint presentations for complete chemistry. These PPTs are very useful for teaching purpose. These PPTs are completely editable. So, if you want to add…
