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.
-
Charging of Insulators
Last modified on:4 years agoReading Time:2Minutes 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…
-
Charging by Contact
Last modified on:4 years agoReading Time:2Minutes Charging by Contact When a negatively charged ebonite rod is rubbed on a metal object, such as a sphere, some of the excess electrons from the rod are transferred to the sphere. Once the electrons are on the metal sphere, where they can move readily, they repel one another and…
-
Charging by Rubbing
Last modified on:4 years agoReading Time:3Minutes Charging by Rubbing The simplest way to charge certain bodies is to rub them against each other. When a glass rod is rubbed with a silk cloth, the glass rod acquires some positive charge and the silk cloth acquires negative charge by the same amount. The explanation of appearance of…
-
Physics MCQ for Class 12 Chapter 4 Moving Charges and Magnetism
Last modified on:5 years agoReading Time:32MinutesCheck out the latest MCQ Questions on CBSE Class 12 Physics Chapter 4 Moving Charges and Magnetism. These questions are extremely helpful for CBSE Board Exams. NCERT Exemplar questions are also included. These concepts are not only important for the CBSE board exam but also are crucial for the competitive exams…
-
Physics MCQs for Class 12 with Answers Chapter 6 Electromagnetic Induction
Last modified on:5 years agoReading Time:28MinutesMCQs based on Electromagnetic Induction: Q.1. Whenever the magnetic flux linked with an electric circuit changes, an emf is induced in the circuit. This is called(a) electromagnetic induction(b) lenz’s law(c) hysteresis loss(d) kirchhoff’s laws Answer Answer: (a) Q.2. In electromagnetic induction, the induced charge is independent of(a) change of flux(b) time.(c)…
-
NCERT Class 12 Physics Solutions
Last modified on:5 years agoReading Time:3MinutesAll the schools have NCERT books into their curriculum and no other book is recommended. The first preference for any exam is NCERT books be it your board exams, medical entrance exams or the most prestigious UPSC exams. We have tried to provide the most suitable and relevant solution to the…
