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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COULOMB’S LAW
Last modified on:3 years agoReading Time:18MinutesCOULOMB’S LAW: Two point electric charges q1 and q2 at rest, separated by a distance r exert a force on each other whose magnitude is given by If between the two charges there is free space then Where ε0 is the absolute electric permittivity of the free space and ε0 =…
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If we comb our hair on a dry day and bring the comb near small pieces of paper, the comb attracts the pieces, why?
Last modified on:4 years agoReading Time:2Minutes If we comb our hair on a dry day and bring the comb near small pieces of paper, the comb attracts the pieces, why? Answer: This is an example of frictional electricity and induction. When we comb our hair, it gets positively charged by rubbing. When the comb is brought…
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Can two similarly charged bodies attract each other?
Last modified on:4 years agoReading Time:1Minute Yes, when the charge on one body Q is much greater than that on the other q and they are close enough to each other so that force of attraction between Q and induced charge on the other exceeds the force of repulsion between Q and q. However, two similar…
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Download Political Science Notes for CBSE Class 12
Last modified on:2 years agoReading Time:9Minutes [PDF] Download Political Science Notes for CBSE Class 12 Here we are providing political science notes for CBSE Class 12. Political Science notes are provided in pdf format. Students will be able to download the files. Political Science holds immense significance, and having comprehensive study materials is crucial for a…
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Comparing Fire and Electricity: An Overview
Last modified on:3 years agoReading Time:10MinutesComparing Fire and Electricity: An Overview In our modern world, fire and electricity are two fundamental elements that play pivotal roles in our daily lives. Understanding their distinct characteristics and potential hazards is essential for safety and practical knowledge. Understanding Fire Fire is a natural phenomenon resulting from the rapid chemical…
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Download ML Aggarwal Solutions for ICSE Class 9
Last modified on:3 years agoReading Time:11Minutes[PDF] Download ML Aggarwal Solutions for ICSE Class 9 In the journey of education, reliable study materials and solutions play a pivotal role. Among these, ML Aggarwal Class 9 ICSE Solutions stand out as valuable resources that aid students in mastering their subjects and excelling in their studies. The Role of…
