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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Assertion and Reason Questions for Class 9 Science Chapter 1 Matter in Our Surroundings
Last modified on:4 weeks agoReading Time:24Minutes Here we are providing assertion reason questions for class 9 science. This article covers assertion reason questions based on Class 9 Science Chapter 1 Matter in Our Surroundings. To check the answer, click on ‘Show Answer’ given below each question. After clicking it will expand. Board CBSE Useful for Class…
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Assertion and Reason Questions for Class 9 Science Chapter 7 Diversity in Living Organisms
Last modified on:1 year agoReading Time:6MinutesHere we are providing assertion reason questions for class 9 science. This article covers assertion reason questions based on Class 9 Science Chapter 7 Diversity in Living Organisms. To check the answer, click on ‘answer’ given below each question. After clicking it will expand. Assertion and Reason Questions for Class 9 Science…
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Class 10 Science Latest Sample Papers 2022-23 with Answers
Last modified on:3 years agoReading Time:5MinutesCBSE has already uploaded sample question papers and marking schemes for all subjects of class 10 on its official website. You can download official sample question papers for all subjects from CBSE official website. Students must follow the official question paper to understand the level and type of questions that can…
