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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Complete Formula List for Class 10 Science Electricity for Quick Revision (CBSE 2027)
Last modified on:4 months agoReading Time:11Minutes Formula Sheet Complete formula guide for Electricity — CBSE Class 10 Science. Each formula is explained with notation, when to use, common mistakes, and exam tips. Formulas 1 Electric Charge & Current Quantization of charge and rate of flow $$Q = ne \quad \text{and} \quad I = \frac{Q}{t}$$ Note: Charge…
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Numerical Problems Based on Banking of Roads and Bending of a Cyclist for Class 11 Physics
Last modified on:4 months agoReading Time:19Minutes Numerical Problems Based on Banking of Roads and Bending of a Cyclist for Class 11 Physics Numerical Problems on Newton’s Laws of Motion Class 11 Physics · Laws of Motion SQ Circular Motion Practice Set Apply concepts of banking, friction, and bending on circular tracks Ch 5 · Laws of…
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Numerical Problems Based on Motion along Rough Inclined Plane for Class 11 Physics
Last modified on:4 months agoReading Time:16Minutes Numerical Problems Based on Motion along Rough Inclined Plane for Class 11 Physics Numerical Problems on Newton’s Laws of Motion Class 11 Physics · Laws of Motion SQ Friction on an Inclined Plane Apply forces parallel and perpendicular to the incline Ch 5 · Laws of Motion 1 A block…
