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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Study Materials for ICSE Class 10 Maths Similarity
Last modified on:3 years agoReading Time:7Minutes[PDF] Download Study Materials for ICSE Class 10 Maths Similarity Here we are providing study materials for ICSE Class 10 Maths. In this article, we are covering ICSE Class 10 Maths Chapter Similarity. Topics Covered in ICSE Class 10 Maths Here is the list of all the chapters for Study Materials…
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Study Materials for ICSE Class 10 Maths Coordinate Geometry
Last modified on:3 years agoReading Time:7Minutes[PDF] Download Study Materials for ICSE Class 10 Maths Coordinate Geometry Here we are providing study materials for ICSE Class 10 Maths. In this article, we are covering ICSE Class 10 Maths Chapter Coordinate Geometry. Topics Covered in ICSE Class 10 Maths Here is the list of all the chapters for…
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Important Diagrams for CBSE Class 12 Physics
Last modified on:3 years agoReading Time:4Minutes[PDF] Download Important Diagrams for CBSE Class 12 Physics Here we are providing Important Diagrams for CBSE Class 12 Physics. All the important diagrams related to CBSE Class 12 Physics are covered in this article. Students are suggested to go through all these important diagrams before their exam. This is very…
