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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[PDF] Download 100 Important Numericals for CBSE Class 9 Physics
Last modified on:2 years agoReading Time:4Minutes [PDF] Download 100 Important Numericals for CBSE Class 9 Physics Welcome to the world of CBSE Class 9 Physics, where the journey to understanding the fundamental principles of the universe begins. As you embark on this exciting academic adventure, mastering numerical problems is key to grasping the core concepts and…
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Case Study Questions for Class 9 Maths Chapter 12 Herons Formula
Last modified on:2 years agoReading Time:1MinuteCase Study Questions for Class 9 Maths Chapter 12 Herons Formula Here we are providing case study questions for Class 9 Maths Chapter 12 Herons Formula. Students are suggested to solve the questions by themselves first and then check the answers. This will help students to check their grasp on this…
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Case Study Questions for Class 9 Maths Chapter 9 Areas of Parallelograms and Triangles
Last modified on:2 years agoReading Time:1MinuteCase Study Questions for Class 9 Maths Chapter 9 Areas of Parallelograms and Triangles Here we are providing case study questions for Class 9 Maths Chapter 9 Areas of Parallelograms and Triangles. Students are suggested to solve the questions by themselves first and then check the answers. This will help students…
