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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MCQ Questions for Class 11 Physics Chapter 1 Physical World
Last modified on:4 years agoReading Time:7MinutesMCQ Questions for Class 11 Physics Chapter 1 Physical World Q.1. The person who has been awarded the title of the Father of Physics of 20th century is(a) Madame Curie (b) Sir C.V. Raman(c) Neils Bohar (d) Albert Einstein Answer Answer: (d) Q.2. The branch of science which deals with nature…
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MCQ Questions for Class 11 Physics Chapter 4 Motion In A Plane
Last modified on:4 years agoReading Time:19MinutesMCQ Questions for Class 11 Physics Chapter 4 Motion In A Plane Q.1. Which of the following conditions are sufficient and essential for a quantity to be a vector?(a) Magnitude and direction(b) Magnitude and addition, subtraction, multiplication by ordinary rules of algebra(c) Magnitude, direction, and addition, subtraction multiplication and division by…
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JEE Advanced MCQ Questions with Explanations
Last modified on:4 years agoReading Time:5MinutesJEE Advanced is an entrance exam conducted in India for aspirants seeking admission to the Indian Institutes of Technology (IITs). It is really a challenging exam for anybody who wishes to study at an IIT, which can be understand by the fact that only 2.5 lakh candidates qualify to appear for…
