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…
-
MCQ Questions Based on Electrical Power and Energy for Class 10 Science
Last modified on:3 years agoReading Time:10MinutesMCQ Questions Based on Electrical Power and Energy for Class 10 Here we are providing MCQ questions for class 10 science based on electrical power and energy. These questions are prepared by expert. These MCQs will help you to understand the topic well. Q.1. The resistance of a conductor is reduced…
-
Case Study Questions for Class 9 Science Chapter 15 Improvement In Food Resources
Last modified on:4 years agoReading Time:2MinutesCase Study/Passage Based Questions: Question 1: Read the following and answer any four questions from (i) to (iii) given below : Apiculture is done for producing honey, wax and medicine. The varieties used for apiculture includes A. dorsata, A. florae etc because they sting less and live longer in given beehive.…
-
Case Study Questions for Class 9 Science Chapter 14 Natural Resources
Last modified on:4 years agoReading Time:4MinutesCase Study/Passage Based Questions: Question 1: At present the primary nutrient which limits the agricultural yield is nitrogen (N). Some plants are capable to produce more N2 than they consume. These plants show symbiotic relationship with N2-fixing bacteria such as Rhizobium.These bacteria produce root nodules in leguminous plants and convert atmospheric…
