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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Assertion Reason Questions for Class 8 Science Chapter 5 Coal and Petroleum
Last modified on:3 years agoReading Time:8MinutesAssertion Reason Questions for Class 8 Science Chapter 5 Coal and Petroleum Here we are providing assertion reason questions for class 8 science. In this article, we are covering Class 8 Science Chapter 5 Coal and Petroleum. Directions: The question below consists of an assertion and a Reason. Use the following…
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Case Study Questions for Class 8 Science Chapter 2 Microorganisms-Friend and Foe
Last modified on:3 years agoReading Time:6MinutesCase Study Questions for Class 8 Science Chapter 2 Microorganisms-Friend and Foe Here we are providing case study questions for CBSE Class 8 science Chapter 2 Microorganisms-Friend and Foe. Case Study Questions Question 1: Daksh lived in delhi and he loves to play football. But as of now his half yearly…
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Case Study Questions for Class 8 Science Chapter 1 Crop Production and Management
Last modified on:3 years agoReading Time:6MinutesCase Study Questions for Class 8 Science Chapter 1 Crop Production and Management Here we are providing case study questions for CBSE Class 8 science Chapter 1 Crop Production and Management. Case Study Questions Question 1: A boy named Yash from Gwalior who studies in 8th standard is very fond of plants.…
