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 Coefficient of Friction and Angle of Friction for Class 11 Physics
Last modified on:4 months agoReading Time:19Minutes Numerical Problems Based on Coefficient of Friction and Angle of Friction for Class 11 Physics Numerical Problems on Newton’s Laws of Motion Class 11 Physics · Laws of Motion SQ Friction Practice Set Apply static/kinetic friction laws and kinematics Ch 5 · Laws of Motion 1 A block of mass…
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Numerical Problems Based on Equilibrium of Concurrent Forces for Class 11 Physics
Last modified on:4 months agoReading Time:9Minutes Numerical Problems Based on Equilibrium of Concurrent Forces for Class 11 Physics Numerical Problems on Newton’s Laws of Motion Class 11 Physics · Laws of Motion SQ Equilibrium of Concurrent Forces Apply $\Sigma F_x = 0$ and $\Sigma F_y = 0$ Ch 5 · Laws of Motion 1 A mass…
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Numerical Problems Based on Rocket Propulsion for Class 11 Physics
Last modified on:4 months agoReading Time:17Minutes Numerical Problems Based on Rocket Propulsion for Class 11 Physics Numerical Problems on Newton’s Laws of Motion Class 11 Physics · Laws of Motion SQ Rocket Propulsion & Variable Mass Practice Set Apply $F = v_r \frac{dm}{dt}$ and rocket equations Ch 5 · Laws of Motion 1 A rocket with…
