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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Editable Study Materials for ICSE
Last modified on:3 years agoReading Time:9Minutes[Download] Editable Study Materials for ICSE Greetings to all teachers and coaching institutes! Finding editable study materials specifically tailored for ICSE (Indian Certificate of Secondary Education) might be a bit challenging compared to study materials for other boards or standardized examinations. Here is a great news for you! We are delighted…
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Editable Study Materials for CBSE
Last modified on:3 years agoReading Time:8Minutes[Download] Editable Study Materials for CBSE Greetings to all teachers and coaching institutes! We are delighted to present our latest offering – Editable Study Materials. Our collection includes editable study materials for CBSE, ICSE, JEE, NEET and Foundation. As educators, we understand the importance of having quality resources that can be…
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Case Study Questions for Class 7 Science Chapter 17 Forests – Our Lifeline
Last modified on:3 years agoReading Time:7Minutes[Download] Case Study Questions for Class 7 Science Chapter 17 Forests – Our Lifeline Here we are providing case study or passage-based questions for class 7 science chapter 17 Forests – Our Lifeline. Case Study/Passage Based Questions Passage-1 Forests are a useful natural resource for us. Forests serve as green lungs…
