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 Chapter 2 Polynomials Ex 2.5
Last modified on:5 years agoReading Time:13MinutesNCERT Solutions for Class 9 Maths Chapter 2 Polynomials Ex 2.5 are part of NCERT Solutions for Class 9 Maths. Here we have given NCERT Solutions for Class 9 Maths Chapter 2 Polynomials Ex 2.5. Polynomials Class 9 Ex 2.1 Polynomials Class 9 Ex 2.2 Polynomials Class 9 Ex 2.3 Polynomials Class…
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NCERT Solutions for Class 9 Maths Chapter 2 Polynomials Ex 2.4
Last modified on:5 years agoReading Time:10MinutesNCERT Solutions for Class 9 Maths Chapter 2 Polynomials Ex 2.4 are part of NCERT Solutions for Class 9 Maths. Here we have given NCERT Solutions for Class 9 Maths Chapter 2 Polynomials Ex 2.4. Polynomials Class 9 Ex 2.1 Polynomials Class 9 Ex 2.2 Polynomials Class 9 Ex 2.3 Polynomials Class…
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NCERT Solutions for Class 9 Maths Chapter 2 Polynomials Ex 2.3
Last modified on:5 years agoReading Time:4MinutesNCERT Solutions for Class 9 Maths Chapter 2 Polynomials Ex 2.3 are part of NCERT Solutions for Class 9 Maths. Here we have given NCERT Solutions for Class 9 Maths Chapter 2 Polynomials Ex 2.3. Polynomials Class 9 Ex 2.1 Polynomials Class 9 Ex 2.2 Polynomials Class 9 Ex 2.3 Polynomials Class…
