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 Science Chapter 15 Our Environment
Last modified on:3 years agoReading Time:2MinutesCase Study Questions for Class 10 Science Chapter 15 Our Environment Question 1: Food web is the interconnection of different food chains, which correlate at various trophic levelsoperating in an ecosystem. (i) How many food chains are present in the given food web? (ii) Name the primary consumer in the given…
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Case Study Questions for Class 10 Science Chapter 13 Magnetic Effect of Electric Current
Last modified on:3 years agoReading Time:5MinutesCase Study Questions for Class 10 Science Chapter 13 Magnetic Effect of Electric Current Question 1: A student wants to study the working of electric motor. He used a model of DC motor for electromagnetism as shown in figure. He fixed the two ends of the coil to a pair of…
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Case Study Questions for Class 10 Science Chapter 12 Electricity
Last modified on:12 months agoReading Time:12MinutesIn 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,…
