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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Quick Revision Notes for Class 10 Maths Chapter 1 Real Numbers
Last modified on:3 years agoReading Time:11MinutesHere we are providing Quick Revision Notes for Class 10 Maths Chapter 1 Real Numbers. Students are advised to check out these points to score better in exams. Quick Revision Notes for Class 10 Maths Chapter 1 Real Numbers Why Class 10 Maths Revision Notes are Necessary? Class 10 Maths revision…
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Case Study Questions for Class 12 Maths Chapter 3 Matrices
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 12 Maths Chapter 3 Matrices Case Study Questions: Question 1: A company produces three products every day. Their production on certain day is 45 tons. It is found that the production of third product exceeds the production of first product by 8 tons while the total…
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Case Study Questions for Class 12 Maths Chapter 2 Inverse Trigonometric Functions
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 12 Maths Chapter 2 Inverse Trigonometric Functions Case Study Questions: Question 1: The Government of India is planning to fix a hoarding board at the face of a building on the road of a busy market for awareness on COVID-19 protocol. Ram, Robert and Rahim are…
