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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Case Study Questions for Class 8 Science Chapter 10 Reaching the Age of Adolescence
Last modified on:3 years agoReading Time:3MinutesCase Study Questions for Class 8 Science Chapter 10 Reaching the Age of Adolescence Here we are providing case study questions for CBSE Class 8 Science Chapter 10 Reaching the Age of Adolescence. Case Study Questions Question 1: Read the given passage and answer the following questions. The changes which occur…
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Case Study Questions for Class 8 Science Chapter 9 Reproduction in Animals
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 8 Science Chapter 9 Reproduction in Animals Here we are providing case study questions for CBSE Class 8 Science Chapter 9 Reproduction in Animals. Case Study Questions Question 1: Read the passage carefully and answer the questions that follow- For the continuity of life, all living…
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Case Study Questions for Class 8 Science Chapter 7 Conservation of Plants and Animals
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 8 Science Chapter 7 Conservation of Plants and Animals Here we are providing case study questions for CBSE Class 8 Science Chapter 7 Conservation of Plants and Animals. Case Study Questions Question 1: Read the passage and answer the question given below. A great variety of…
