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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Extra Questions for Class 12 Physics Chapter 9 Ray Optics and Optical Instrument
Last modified on:4 years agoReading Time:3MinutesHere we are providing extra questions for class 12 physics. In this article we have covered class 12 physics chapter 9 Ray optics and Optical Instrument. Different kind of questions are included to give students an idea about every possible question related to the chapter. Extra Questions for Class 12 Physics…
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Conceptual Questions Based on Class 11 Physics Gravitation
Last modified on:3 years agoReading Time:11MinutesHere we are providing conceptual questions for Class 11 Physics Gravitation. Answers are also provided along with questions. So that students can read and understand the question. These questions are prepared by the subject experts. Students can read these conceptual questions based on Gravitation for better topic clarity and therefore will be able to…
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[PDF] Download NEET Chapterwise Practice Tests for Biology
Last modified on:4 years agoReading Time:3MinutesHere we are providing Chapterwise Tests for NEET. These chapterwise tests on Biology is prepared by subject expert. Practicing these tests will boost your confidence. The test will be provided in PDF Format. Now Download NEET Chapterwise Practice Tests for Biology Features of this test series: You will receive the document…
