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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Numerical Problems Based on Refraction of Light for Class 12 Physics
Last modified on:4 years agoReading Time:8MinutesNumerical Problems Based on Refraction of Light for Class 12 Physics Here we are providing numerical problems based on refraction of light for class 12 physics. This covers problems on lateral shift, real and apparent depth. Students can practice these questions for better understanding of the concepts and formulae. Q.1. A…
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Numerical Problems Based on Mirror Formula for Class 12 Physics
Last modified on:5 months agoReading Time:26MinutesHere we are providing Numerical Problems based on Mirror Formula for CBSE Class 12 Physics. Numerical Problems on Mirror Formula Class 12 Physics · Ray Optics N Mirror Formula Practice Set 1 Apply $\frac{1}{v} + \frac{1}{u} = \frac{1}{f}$ and $m = -\frac{v}{u}$ Ch 9 · Ray Optics 1 A 5 cm…
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Integer Type Questions of Chapter Electrochemistry for JEE Chemistry
Last modified on:4 years agoReading Time:4MinutesHere we are providing integer type questions for class 12 chemistry chapter 3 electrochemistry. These questions are useful for students preparing for various engineering entrance examinations. It is specially prepared for JEE aspirants. Integer Type Questions Based on Chapter Electrochemistry DIRECTIONS. The answer to each of the following questions is a…
