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:5 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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Class 10 Science Human Eye (Important Questions with Answers)
Last modified on:5 years agoReading Time:7MinutesImportant Questions With Answers 1. How is the eye lens held in its position? Ans: – Ciliary muscles hold the eye in position. 2. What is meant by near point? Ans: – The nearest point up to which an eye can see clearly is called the near point of the eye.…
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Human Eye & Colourful World (Numerical with Answer)
Last modified on:5 months agoReading Time:30MinutesHere we are providing numerical assignment on class 10 science chapter human eye and colourful world. Answers are also provided for reference. Numerical Problems on Human Eye and Colourful World Class 10 Science · The Human Eye N Eye Defects Practice Set 1 Apply lens formula $\frac{1}{v} – \frac{1}{u} = \frac{1}{f}$…
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CBSE Class 10 Human Eye & Colourful World NCERT Solution
Last modified on:5 years agoReading Time:11Minutes Human Eye & Colourful World (NCERT solution) Q. 1. What is meant by power of accommodation of the eye? Ans. The ability of the eye lens to adjust its focal length is called power of accommodation of the eye. This enables us to see distant objects and nearby object clearly.…
