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: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…
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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…
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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…
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Case Study Questions for Class 7 Science Chapter 2 Nutrition in Animals
Last modified on:3 years agoReading Time:8Minutes[Download] Case Study Questions for Class 7 Science Chapter 2 Nutrition in Animals Here we are providing case study or passage-based questions for class 7 science chapter 2 Nutrition in Animals. Case Study/Passage Based Questions Passage-1 Amoeba is a microscopic single-celled organism found in pond water. It has a cell membrane,…
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Case Study Questions for Class 7 Science Chapter 1 Nutrition in Plants
Last modified on:3 years agoReading Time:7Minutes[Download] Case Study Questions for Class 7 Science Chapter 1 Nutrition in Plants Here we are providing case study or passage-based questions for class 7 science chapter 1 Nutrition in Plants. Case Study/Passage Based Questions Passage-1 The bodies of living organisms are made of tiny units called cells. Cells can be…
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Case Study Questions for Class 6 Science Chapter 12 Electricity and Circuits
Last modified on:2 years agoReading Time:8Minutes [Download] Case Study Questions for Class 6 Science Chapter 12 Electricity and Circuits Here we are providing case study or passage-based questions for class 6 science chapter 12 Electricity and Circuits. Case Study/Passage Based Questions Passage-1 An electric bulb has a filament that is connected to the terminals. The two…
