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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Case Study Questions for Class 7 Science Chapter 16 Water – A Precious Resource
Last modified on:3 years agoReading Time:7Minutes[Download] Case Study Questions for Class 7 Science Chapter 16 Water – A Precious Resource Here we are providing case study or passage-based questions for class 7 science chapter 16 Water – A Precious Resource. Case Study/Passage Based Questions Passage-1 Rain water and water from other sources like rivers and ponds…
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Case Study Questions for Class 7 Science Chapter 15 Light
Last modified on:4 weeks agoReading Time:10Minutes Looking for high-quality practice material on lenses? You’re in the right place. Below, we are providing important Case Study Questions for CBSE Class 7 Science Chapter 15 Light. These passage-based questions are perfectly aligned with the latest syllabus to help you practice competency-based learning. Read through the provided passage on…
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Case Study Questions for Class 7 Science Chapter 14 Electric Current and Its Effects
Last modified on:3 years agoReading Time:6Minutes[Download] Case Study Questions for Class 7 Science Chapter 14 Electric Current and Its Effects Here we are providing case study or passage-based questions for class 7 science chapter 14 Electric Current and Its Effects. Case Study/Passage Based Questions Passage-1 We use various appliances based on heating effect of current in…
