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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Revision Notes for Class 11 Physics Surface Tension
Last modified on:3 years agoReading Time:2MinutesHere we are providing revision notes for class 11 physics surface tension. This revision notes covers all important points and formulas of the chapter. Tips and Tricks are also included. These are the most preferred revision notes. It is very important for a student to make proper revision notes of the…
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Case Study Questions for Class 11 Physics Chapter 15 Waves
Last modified on:3 years agoReading Time:5MinutesCase Study Questions for Class 11 Physics Chapter 15 Waves Case Study Questions: Question 1: Transverse and Longitudinal Waves Transverse waves forms if the particles of the medium vibrate at right angle to the direction of wave motion energy propagation, the wave is called transverse wave. These are propagated as crests…
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Case Study Questions for Class 11 Physics Chapter 14 Oscillations
Last modified on:3 years agoReading Time:5MinutesCase Study Questions for Class 11 Physics Chapter 14 Oscillations Case Study Questions: Question 1: Simple Harmonic Motion Simple harmonic motion is the simplest form of oscillation. A particular type of periodic motion in which a particle moves to and fro repeatedly about a mean position under the influence of a…
