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 10 Maths with Answers Chapter 6 Triangles
Last modified on:3 years agoReading Time:10MinutesQ.1. Two isosceles triangles have equal angles and their areas are in the ratio 16: 25. The ratio of corresponding heights is:(A) 4:5(B) 5:4(C) 3:2(D) 5:7 Answer Answer: (A) 4:5 Q.2. In the figure, PB and QA are perpendicular to segment AB. If OA = 5 cm, PO = 7cm and…
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Case Study Questions for Class 10 Maths Chapter 1 Real Numbers
Last modified on:3 years agoReading Time:7MinutesCase Study Questions for Class 10 Maths Chapter 1 Real Numbers Question 1: HCF and LCM are widely used in number system especially in real numbers in finding relationship between different numbers and their general forms. Also, product of two positive integers is equal to the product of their HCF and…
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Assertion and Reason Questions for Class 9 Science Chapter 2 Is Matter Around Us Pure
Last modified on:12 months agoReading Time:13MinutesHere we are providing assertion reason questions for class 9 science. This article covers assertion reason questions based on Class 9 Science Chapter 2 Is Matter Around Us Pure. To check the answer, click on ‘Answer’ given below each question. After clicking it will expand. Assertion and Reason Questions for Class…
