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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Reynolds Number
Last modified on:3 years agoReading Time:10MinutesWhat is Reynolds Number? The Reynolds number (Re) is a dimensionless parameter used in fluid mechanics to characterize the flow of a fluid (liquid or gas) around an object or through a conduit. It relates the inertial forces to the viscous forces in the fluid and helps determine the type of…
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NCERT Solutions for Class 9 Maths
Last modified on:5 years agoReading Time:21MinutesChapter 1 Number Systems Number Systems Class 9 Ex 1.1 Number Systems Class 9 Ex 1.2 Number Systems Class 9 Ex 1.3 Number Systems Class 9 Ex 1.4 Number Systems Class 9 Ex 1.5 Number Systems Class 9 Ex 1.6 Chapter 2 Polynomials Polynomials Class 9 Ex 2.1 Polynomials Class 9…
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NCERT Solutions for Class 9 Science
Last modified on:5 years agoReading Time:3MinutesNCERT Solutions for Class 9 Science are provided for the students to help them in their preparation. The best way to study CBSE Class 9 Science is through NCERT. Don’t just mug up the concepts instead go through all the concepts thoroughly. Make notes and practice as much as you can. NCERT…
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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 =…
