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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NCERT Solutions for Class 9 Science Chapter 15 Improvement in Food Resources
Last modified on:5 years agoReading Time:23MinutesHere we have given NCERT Solutions for Class 9 Science Chapter 15 Improvement in Food Resources. Board CBSE Textbook NCERT Class Class 9 Subject Science Chapter Chapter 15 Chapter Name Improvement in Food Resources Number of Questions Solved 26 Category NCERT Solutions NCERT Solutions for Class 9 Science Chapter 15 Improvement…
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NCERT Solutions for Class 9 Science Chapter 13 Why do we fall ill
Last modified on:5 years agoReading Time:14MinutesHere we have given NCERT Solutions for Class 9 Science Chapter 13 Why Do We Fall III. Board CBSE Textbook NCERT Class Class 9 Subject Science Chapter Chapter 13 Chapter Name Why Do We Fall III Number of Questions Solved 16 Category NCERT Solutions NCERT Solutions for Class 9 Science Chapter…
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NCERT Solutions for Class 9 Science Chapter 12 Sound
Last modified on:5 years agoReading Time:32MinutesHere we have given NCERT Solutions for Class 9 Science Chapter 12 Sound. Board CBSE Textbook NCERT Class Class 9 Subject Science Chapter Chapter 12 Chapter Name Sound Number of Questions Solved 39 Category NCERT Solutions NCERT Solutions for Class 9 Science Chapter 12 Sound INTEXT Questions Question 1.How does the…
