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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Electric Field of a Line Charge
Last modified on:3 years agoReading Time:3MinutesElectric Field of a Line Charge Positive charge q is distributed uniformly along a line with length 2a, lying along the y-axis between y=–a and y=+a. We are here interested in finding the electric field at point P on the x-axis. Derivation of electric field due to a line charge: Thus,…
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Electric Field Lines
Last modified on:3 years agoReading Time:5MinutesElectric Field Lines Electric charges create an electric field in the space surrounding them. It is useful to have a kind of “map” that gives the direction and indicates the strength of the field at various places. Field lines, a concept introduced by Michael Faraday, provide us with an easy way…
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Human Ear
Last modified on:4 years agoReading Time:3MinutesHuman Ear The human ear, like that of other mammals, contains sense organs that serve two quite different functions: that of hearing and that of head and eye movements. Anatomically, the ear has three distinguishable parts: the outer, middle, and inner ear. How Human Ear Works? Different sounds produced in our surroundings are collected by…
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3D Coordinate Geometry Formulas for Class 12 Maths
Last modified on:4 years agoReading Time:1Minute 3D Coordinate Geometry Formulae list provided here forms a strong base during your preparation. Learn all the Maths Concepts well and apply formulae to solve your problems. You can answer any question and solve any problem based on 3D Coordinate Geometry easily by referring the below formulas. 3D Coordinate Geometry…
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Case Study Questions for Class 11 Physics Chapter 4 Motion In A Plane
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 11 Physics Chapter 4 Motion in a Plane Case Study Questions: Question 1: Projectile motion is a form of motion in which an object or particle is thrown with some initial velocity near the earth’s surface and it moves along a curved path under the action…
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Case Study Questions for Class 11 Chemistry Chapter 5 States of Matter
Last modified on:3 years agoReading Time:5Minutes Case Study Questions for Class 11 Chemistry Chapter 5 States of Matter Question 1: Intermolecular forces are the forces of attraction and repulsion that exist between molecules of a compound. These cause the compound to exist in a certain state of matter – solid, liquid or gas and affect the…
