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 7 Maths Chapter 2 Fractions and Decimals
Last modified on:3 years agoReading Time:15Minutes Extra Questions for Class 7 Maths Chapter 2 Fractions and Decimals Here we are providing extra questions for CBSE Class 7 Maths Chapter 2 Fractions and Decimals. Related Posts Chapter List Latest Chapter List (2023-24) There is total 13 chapters. Chapter 1 Integers Extra QuestionsChapter 2 Fractions and Decimals Extra…
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Physics Practical Class 12 Viva Questions
Last modified on:3 years agoReading Time:20Minutes [PDF] Physics Practical Class 12 Viva Questions Here you will find viva questions for class 12 physics practicals. Experiment wise viva questions are provided with answers. 2. Measurement of Electromotive Force and Potential Difference 3. Galvanometer, Ammeter and Voltmeter 4. Frequency of AC (Alternating Current) Mains 5. Focal Length of…
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Extra Questions for Class 7 Maths Chapter 1 Integers
Last modified on:3 years agoReading Time:15Minutes Extra Questions for Class 7 Maths Chapter 1 Integers Here we are providing extra questions for CBSE Class 7 Maths Chapter 1 Integers. Chapter List Latest Chapter List (2023-24) There is total 13 chapters. Chapter 1 Integers Extra QuestionsChapter 2 Fractions and Decimals Extra QuestionsChapter 3 Data Handling Extra QuestionsChapter…
