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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Complete Formula List for Class 10 Science Electricity for Quick Revision (CBSE 2027)
Last modified on:4 months agoReading Time:11Minutes Formula Sheet Complete formula guide for Electricity — CBSE Class 10 Science. Each formula is explained with notation, when to use, common mistakes, and exam tips. Formulas 1 Electric Charge & Current Quantization of charge and rate of flow $$Q = ne \quad \text{and} \quad I = \frac{Q}{t}$$ Note: Charge…
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Numerical Problems Based on Banking of Roads and Bending of a Cyclist for Class 11 Physics
Last modified on:4 months agoReading Time:19Minutes Numerical Problems Based on Banking of Roads and Bending of a Cyclist for Class 11 Physics Numerical Problems on Newton’s Laws of Motion Class 11 Physics · Laws of Motion SQ Circular Motion Practice Set Apply concepts of banking, friction, and bending on circular tracks Ch 5 · Laws of…
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Numerical Problems Based on Motion along Rough Inclined Plane for Class 11 Physics
Last modified on:4 months agoReading Time:16Minutes Numerical Problems Based on Motion along Rough Inclined Plane for Class 11 Physics Numerical Problems on Newton’s Laws of Motion Class 11 Physics · Laws of Motion SQ Friction on an Inclined Plane Apply forces parallel and perpendicular to the incline Ch 5 · Laws of Motion 1 A block…
