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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Magnetism and Matter – Concept Booster | Class 12 Physics 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 covers Magnetism and Matter completely for CBSE Class 12 Physics. Key Concepts Class 12 · Physics · Magnetism and Matter 💡 Magnetism and Matter…
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Moving Charges & Magnetism – Concept Booster | Class 12 Physics CBSE
Last modified on:4 months agoReading Time:21Minutes 📖 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 covers Moving Charges and Magnetism completely for CBSE Class 12 Physics. Key Concepts Class 12 · Physics · Moving Charges and Magnetism 💡 Moving…
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Current Electricity – 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 covers Current Electricity completely for CBSE Class 12 Physics. Key Concepts Class 12 · Physics · Current Electricity 💡 Current Electricity Core concepts you…
