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…
-
Case Study Questions for Class 9 Maths Chapter 1 Real Numbers
Last modified on:3 years agoReading Time:3MinutesCase Study Questions for Class 9 Maths Chapter 1 Real Numbers Case Study Questions: Question 1: Himanshu has made a project on real numbers, where he finely explained the applicability of exponential laws and divisibility conditions on real numbers. He also included some assessment questions at the end of his project…
-
Case Study and Passage Based Questions for Class 10 Maths Chapter 15 Probability
Last modified on:3 years agoReading Time:3MinutesCase Study and Passage Based Questions for Class 10 Maths Chapter 15 Probability Case Study Questions: Question 1: On a weekend Rani was playing cards with her family. The deck has 52 cards. If her brother drew one card. (i) Find the probability of getting a king of red colour.(a) 1/26(b)…
-
Case Study and Passage Based Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry
Last modified on:3 years agoReading Time:3MinutesCase Study and Passage Based Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry Case Study Questions: Question 1: Ananya is feeling so hungry and so thought to eat something. She looked into the fridge and found a bread pieces. She decided to make a sandwich. She cut the piece…
