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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Charging of Insulators
Last modified on:5 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…
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Charging by Contact
Last modified on:5 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…
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Charging by Rubbing
Last modified on:5 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…
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Assertion Reason Questions for Class 8 Science Chapter 5 Coal and Petroleum
Last modified on:3 years agoReading Time:8MinutesAssertion Reason Questions for Class 8 Science Chapter 5 Coal and Petroleum Here we are providing assertion reason questions for class 8 science. In this article, we are covering Class 8 Science Chapter 5 Coal and Petroleum. Directions: The question below consists of an assertion and a Reason. Use the following…
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Case Study Questions for Class 8 Science Chapter 2 Microorganisms-Friend and Foe
Last modified on:3 years agoReading Time:6MinutesCase Study Questions for Class 8 Science Chapter 2 Microorganisms-Friend and Foe Here we are providing case study questions for CBSE Class 8 science Chapter 2 Microorganisms-Friend and Foe. Case Study Questions Question 1: Daksh lived in delhi and he loves to play football. But as of now his half yearly…
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Case Study Questions for Class 8 Science Chapter 1 Crop Production and Management
Last modified on:3 years agoReading Time:6MinutesCase Study Questions for Class 8 Science Chapter 1 Crop Production and Management Here we are providing case study questions for CBSE Class 8 science Chapter 1 Crop Production and Management. Case Study Questions Question 1: A boy named Yash from Gwalior who studies in 8th standard is very fond of plants.…
