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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Acids Bases and Salts – Concept Booster | Class 10 Science CBSE
Last modified on:4 months agoReading Time:18Minutes 📖 How to Use This Page Read each concept carefully, then check the formula, common mistake, and exam tip before moving to the next. This page completely covers Acids, Bases and Salts for CBSE Class 10 Science, explaining how these crucial chemicals interact in our bodies and industries. Key Concepts…
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Chemical Reactions and Equations – Concept Booster | Class 10 Science CBSE
Last modified on:4 months agoReading Time:18Minutes 📖 How to Use This Page Read each concept carefully, then check the formula, common mistake, and exam tip before moving to the next. This page completely covers Chemical Reactions and Equations for CBSE Class 10 Science, laying the groundwork for all of Chemistry. Key Concepts Class 10 · Science…
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Semiconductor Electronics – Concept Booster | Class 12 Physics CBSE
Last modified on:4 months agoReading Time:20Minutes 📖 How to Use This Page Read each concept carefully, then check the formula, common mistake, and exam tip before moving to the next. This page completely covers Semiconductor Electronics: Materials, Devices and Simple Circuits for CBSE Class 12 Physics. Note: Transistors and Logic Gates have been rationalized from the…
