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.
-
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…
-
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…
-
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…
-
Assertion and Reason Questions for Class 11 Physics Chapter 12 Thermodynamics
Last modified on:4 years agoReading Time:9MinutesAssertion and Reason Questions for Class 11 Physics Chapter 12 Thermodynamics Directions: Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and…
-
Assertion and Reason Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter
Last modified on:4 years agoReading Time:8MinutesHere we have provided assertion and reason questions for class 11 physics chapter 11 Thermal Properties of Matter. These questions are prepared by subject experts. Students can use these questions for practice. Assertion and Reason Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter Directions: Each of these questions…
-
Assertion and Reason Questions for Class 11 Physics Chapter 15 Waves
Last modified on:4 years agoReading Time:22Minutes Assertion and Reason Questions for Class 11 Physics Chapter 15 Waves Directions: (a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is…
