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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NCERT SOLUTION (Ch-2)
Last modified on:5 years agoReading Time:14MinutesAcids, Bases & Salts PAGE- 18 Question 1: You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube? Answer…
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NCERT Solutions for Class 10 Science Chapter 1 Chemical Reactions and Equations
Last modified on:5 years agoReading Time:21MinutesNCERT Solutions for Class 10 Science Chapter 1 Chemical Reactions and Equations Gurukul Provides NCERT Solutions for Class 10 Science. You can download these solutions in PDF format for free. All questions are solved by subject experts keeping in mind the NCERT guidelines. Students can use these questions for practice. Here, we…
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Class 10 Important Notes Chapter 1 Chemical Reactions & Equations
Last modified on:5 years agoReading Time:16Minutes1. The changes which take place in substances can be broadly classified as physical changes and chemical changes. 2. During a physical change, only the state of the substance changes, but not its chemical composition. Furthermore, a physical change is a temporary change, which can be reversed by changing the physical…
