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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Revision Notes for Class 11 Physics Chapter 9 Mechanical Properties of Solids
Last modified on:4 years agoReading Time:2MinutesHere we are providing revision notes for class 11 physics Mechanical Properties of Solids. These revision notes covers all important points and formulas of the chapter. Tips and Tricks are also included. These are the most preferred revision notes. It is very important for a student to make proper revision notes…
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Topicwise Important Questions and Answers for Class 12 Physics Chapter 1 Electric Charges and Fields
Last modified on:4 years agoReading Time:2MinutesHere we are providing topicwise important questions with answers for class 12 physics chapter 1 electric charges and fields. Study notes of topics covered are also provided so that you can revise at the same time before doing the question answer. Topicwise Important Questions and Answers for Class 12 Physics Chapter…
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[PDF] Download NCERT Books for Class 12 Chemistry
Last modified on:1 year agoReading Time:8Minutes The National Council of Educational Research and Training (NCERT) publishes Chemistry textbooks for Class 12. Here we are providing the updated NCERT Books. The use of NCERT Books Class 12 Chemistry is not only suitable for studying the regular syllabus of various boards but it can also be useful for the candidates…
