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…
-
Assertion Reason Questions for Class 7 Science Chapter 17 Forests – Our Lifeline
Last modified on:3 years agoReading Time:13Minutes[Download] Assertion Reason Questions for Class 7 Science Chapter 17 Forests – Our Lifeline Here we are providing assertion reason questions for Chapter 17 Forests – Our Lifeline Directions: The question below consists of an assertion and a Reason. Use the following key to choose the appropriate answer.(a) Both A and…
-
[PDF] Download Numerical Problems for Class 11 Physics Laws of Motion with Answers
Last modified on:3 years agoReading Time:4MinutesHere we are providing Numerical Problems for Class 11 Physics Laws of Motion. Problems based on all topics of Laws of Motion are covered in this package. Problems are classified into topics. So, after completing a particular topic students can solve the problems based on that particular topic to understand the…
-
[PDF] Download Numerical Problems for Class 11 Physics Motion in a Plane with Answers
Last modified on:3 years agoReading Time:3MinutesHere we are providing Numerical Problems for Class 11 Physics Motion in a Plane. Problems based on all topics of Motion in a Plane are covered in this package. Problems are classified into topics. So, after completing a particular topic students can solve the problems based on that particular topic to…
