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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Frictional Electricity
Last modified on:3 years agoReading Time:10Minutes What is frictional electricity? Frictional electricity, also known as static electricity, is the type of electricity that results from the friction or rubbing of two objects together. When two objects are rubbed against each other, the friction between them can cause the transfer of electrons from one object to the…
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Alternating Current
Last modified on:3 years agoReading Time:24Minutes What is Alternating Current (A.C.)? Alternating Current (AC) is an electrical current that periodically reverses direction in a circuit. Unlike Direct Current (DC), which flows only in one direction, AC constantly changes its polarity and magnitude over time. Explanation: In an AC circuit, electrons periodically switch direction, moving back and…
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Terminal Velocity
Last modified on:3 years agoReading Time:13Minutes What is Terminal Velocity? Terminal velocity is the constant maximum speed reached by an object in free fall or falling through a fluid (such as air or water) when the force of air resistance or fluid resistance becomes equal in magnitude and opposite in direction to the force of gravity…
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Extra Questions for Class 12 Biology Chapter 13 Organisms and Populations
Last modified on:4 years agoReading Time:14MinutesExtra Questions for Class 12 Biology Chapter 13 Organisms and Populations Q.1. Name the interaction between sea anemone and the hermit crab that grows on it.Ans. Commensalism Q.2. Why are green algae not likely to be found in the deepest strata of the ocean?Ans. The wavelength of light at the deepest…
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Numerical Problems Based on Class 11 Physics Projectile Motion
Last modified on:5 months agoReading Time:19Minutes Numerical Problems on Projectile Motion Class 11 Physics · Kinematics Here we are providing Numerical Problems on Projectile MNotion for CBSE Class 11 Physics. SQ Projectile Motion Practice Set Attempt each question before revealing the answer Ch 4 · Motion in a Plane 1 A cricketer can throw a ball…
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Numerical Problems Based on Class 11 Physics Chapter 3 Motion In A Straight Line
Last modified on:5 months agoReading Time:16Minutes Numerical Problems on Motion In A Straight Line Class 11 Physics · Kinematics N Motion in a Straight Line Practice Set 1 Attempt each question before revealing the answer Ch 3 · Kinematics 1 A body starting from rest has an acceleration of 20 m/s2. Calculate the distance travelled by…
