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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Extra Questions for Class 10 Science Chapter 8 How Do Organisms Reproduce
Last modified on:4 years agoReading Time:24MinutesExtra Questions for Class 10 Science Chapter 8 How Do Organisms Reproduce Q.1. Give one advantage of the asexual mode of reproduction. Answer: Asexual mode of reproduction occurs very fast as it include processes like budding, fission, etc. While the sexual mode is very slow. Clones can be produced by asexual…
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Extra Questions for Class 10 Science Chapter 5 Periodic Classification of Elements
Last modified on:4 years agoReading Time:9MinutesExtra Questions for Class 10 Science Chapter 5 Periodic Classification of Elements Q.1. On what basis Mendeleev classify the elements? Answer: Mendeleev classified the elements on the basis of their fundamental property, i.e. atomic mass and chemical properties. He reacted the elements with hydrogen and oxygen and formulaeof the hydrides and…
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Extra Questions for Class 10 Science Chapter 7 Control And Coordination
Last modified on:4 years agoReading Time:23MinutesExtra Questions for Class 10 Science Chapter 7 Control And Coordination Q.1. Define reflex action. Answer: A reflex action or also known as reflex is the sudden action given in response to any activity. These are the involuntary movement. Reflex action does not involve the conscious part of the brain. The…
