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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Electromagnetic Induction
Last modified on:5 years agoReading Time:4MinutesWhat is Electromagnetic Induction? It was discovered by Michael Faraday in 1831. It is the phenomenon of generating an emf by changing the number of magnetic field lines (i.e. magnetic flux) associated with the circuit. We have studied that moving charges or current produces magnetic field. Then normally we get a doubt whether…
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Writing a Perfect Answer!
Last modified on:5 years agoReading Time:3MinutesGive every Question your best shot and write the PERFECT ANSWER everytime!! Imagine you are seated in the exam hall, waiting to get your hands on that much anticipated piece of paper- THE EXAMINATION PAPER!! You are loaded with a ton of information in your brain. Your finger tips are numb…
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NEET Transmission of Heat Important Questions
Last modified on:5 years agoReading Time:3MinutesCheck important questions and answers for NEET Exam. Practice these questions to improve your concepts and perform better in the actual test. These questions for NEET designed by GURUKUL is one of the best and complete study material as it covers all the important questions from the chapters which are in syllabus. We have…
