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 Capillarity and Ascent Formula
Last modified on:3 years agoReading Time:6MinutesThe Latin word capilla means hair. A tube of very fine (hair-like) bore is called a capillary tube. When a capillary tube of glass open at both ends is dipped in liquid which wets its walls (e.g., water, alcohol), the liquid rises in the tube. But when the capillary tube is…
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Conceptual Questions Based on Class 12 Physics Nuclei
Last modified on:3 years agoReading Time:6MinutesConceptual Questions Based on Class 12 Physics Nuclei Here we are providing conceptual questions based on Class 12 Physics Nuclei. Students are suggested to go through each and every question for better understanding. Q.1. What is the ratio of the nuclear densities of two nuclei having mass numbers in the ratio…
