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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MCQ Questions for Class 12 Economics
Last modified on:3 years agoReading Time:7Minutes[PDF] Download MCQ Questions for Class 12 Economics Practice MCQ Questions for Class 12 Economics that is provided here. This will help you achieve the highest marks in your board exams or other competitive tests. Economics Class 12 MCQ Questions assist in assessing your understanding of the subject. Answers to Class…
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MCQ Questions for Class 12 Physical Education
Last modified on:3 years agoReading Time:6Minutes [PDF] Download MCQ Questions for Class 12 Physical Education “We have compiled a set of Multiple Choice Questions (MCQs) with answers for Class 12 Physical Education, aligned with the latest CBSE board syllabus. These MCQs cover all chapters and are designed to assist you in quickly grasping the concepts and…
