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 10 Maths Chapter 14 Statistics
Last modified on:3 years agoReading Time:3MinutesCase Study Questions for Class 10 Maths Chapter 14 Statistics Question 1: Direct income in India was drastically impacted due to the COVID-19 lockdown. Most of the companies decided to bring down the salaries of the employees upto 50%. The following table shows the salaries (in percent) received by 50 employees…
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Case Study Questions for Class 10 Maths Chapter 13 Surface Areas and Volumes
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 10 Maths Chapter 13 Surface Areas and Volumes Question 1: To make the learning process more interesting creative and innovative Shavya’s class teacher brings clay in the classroom, to teach the topic. Surface Areas and Volumes. With clay, she forms a cylinder of radius 4 cm…
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Case Study Questions for Class 10 Maths Chapter 9 Applications of Trigonometry
Last modified on:3 years agoReading Time:9MinutesCase Study Questions for Class 10 Maths Chapter 9 Applications of Trigonometry In CBSE Class 10 Maths Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies as well. In that, a paragraph will be given, and then the…
