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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Class 11 and 12 Maths PPT for Online Teaching
Last modified on:3 years agoReading Time:3MinutesClass 11 and 12 Maths PPT for Online Teaching We are providing class 11th and 12th Maths PPTs. Make your online teaching interesting with our interactive PowerPoint presentations for Maths. A must buy for teachers teaching online. Get PowerPoint presentations for complete Maths. These PPTs are very useful for teaching purpose. These…
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Assertion Reason Questions for Class 10 Science Term 2 Exam
Last modified on:4 years agoReading Time:2MinutesWe have provided here assertion reason questions for class 10 science term 2 exam. You can read these chapter-wise assertion reason questions for your term 2 science paper. These questions are prepared by subject experts and experienced teachers. Answer key is also provided so that you can check the correct answer…
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Case Study and Passage Based Questions for Class 10 Science Chapter 5 Periodic Classification of Elements
Last modified on:4 years agoReading Time:4MinutesIn CBSE Class 10 Science Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked. Here,…
