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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Conductors and Insulators
Last modified on:5 years agoReading Time:2MinutesConductors and Insulators Solids are mainly classified into two groups, conductors and insulators. In conductors, electric charges are free to move from one place to another, whereas in insulators they are tightly bound to their respective atoms. In an uncharged body, there are equal number of positive and negative charges. The…
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Electric Field Due to a Point Charge
Last modified on:3 years agoReading Time:1MinuteElectric Field Due to a Point Charge The electric field produced by a point charge q can be obtained in general terms from Coulomb’s law.First note that the magnitude of the force exerted by the charge q on a test charge q0 is then divide this value by q0 to obtain…
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Electric Field Due to a Charged Ring
Last modified on:3 years agoReading Time:4MinutesElectric Field Due to a Charged Ring A conducting ring of radius R has a total charge q uniformly distributed over its circumference. We are interested in finding the electric field at point P that lies on the axis of the ring at a distance x from its centre. We divide…
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Whole Numbers Class 6 Maths Worksheet
Last modified on:3 years agoReading Time:16MinutesWhole Numbers The numbers 1, 2, 3, …., are called natural numbers or counting numbers. Let us add one more number, i.e., zero (0), to the collection of natural numbers. Now the numbers are 0, 1, 2, 3,….. These numbers are called whole numbers. Properties of Whole Numbers Properties of whole…
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Case Study Questions for Class 8 Science Chapter 13 Sound
Last modified on:7 months agoReading Time:7Minutes Looking for high-quality practice material for Chapter 13? You’re in the right place. Below, we are providing Case Study Questions for CBSE Class 8 Science Chapter 13: Sound. These passage-based questions are perfectly aligned with the latest syllabus to help students practice competency-based learning. Read through the provided passages, test…
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Important Derivations for Class 11 Physics Chapter 5 Laws of Motion
Last modified on:3 years agoReading Time:4MinutesImportant Derivations for Class 11 Physics Chapter 5 Laws of Motion Here we are providing important derivations for Class 11 Physics Chapter 5 Laws of Motion. Derivation 1: Derivation of First Law of Motion from Newton’s Second Law To derive the First Law of Motion (Law of Inertia) from Newton’s Second…
