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 11 Physics Chapter 11 Thermal Properties of Matter
Last modified on:3 years agoReading Time:5MinutesCase Study Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter Case Study Questions: Question 1: Specific Heat Capacity Heat capacity of a substance is defined as where ΔQ is the amount of heat supplied to the substance to change its temperature from T to T + ΔT. Specific…
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Case Study Questions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids
Last modified on:3 years agoReading Time:6MinutesCase Study Questions: Question 1: The property due to which the free surface of liquid tends to have minimum surface area and behaves like a stretched membrane is called surface tension. It is a force per unit length acting in the plane of interface between the liquid and the bounding surface…
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Case Study Questions for Class 11 Physics Chapter 9 Mechanical Properties of Solids
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 11 Physics Chapter 9 Mechanical Properties of Solids Case Study Questions: Question 1: The graph shown below shows qualitatively the relation between the stress and the strain as the deformation gradually increases. Within Hooke’s limit for a certain region stress and strain relation is linear. Beyond…
