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 Motion under Gravity for Class 11 Physics
Last modified on:5 months agoReading Time:16Minutes Numerical Problems on Motion Under Gravity Class 11 Physics · Motion in a Straight Line SQ Free Fall and Vertical Motion Practice Set Apply equations of motion with constant acceleration $g$ Ch 3 · Motion in a Straight Line 1 A stone is thrown vertically upwards with a velocity of…
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Numerical Problems Based on Motion with Uniform Acceleration for Class 11 Physics
Last modified on:5 months agoReading Time:16Minutes Numerical Problems on Kinematics (Equations of Motion) Class 11 Physics · Motion in a Straight Line SQ Equations of Uniformly Accelerated Motion Apply $v = u + at$, $s = ut + \frac{1}{2}at^2$, and $v^2 – u^2 = 2as$ Ch 3 · Motion in a Straight Line 1 A race…
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Numerical Problems Based on Instantaneous Velocity and Instantaneous Acceleration for Class 11 Physics
Last modified on:5 months agoReading Time:8Minutes Numerical Problems on Kinematics (Calculus Method) Class 11 Physics · Motion in a Straight Line SQ Differentiation in Kinematics Practice Set Apply the concepts of $v = \frac{dx}{dt}$ and $a = \frac{dv}{dt}$ Ch 3 · Motion in a Straight Line 1 The displacement $x$ of a particle at time $t$…
