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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Science and Maths Concepts and Formulas for Class 10 Term 2 Exams
Last modified on:4 years agoReading Time:2MinutesScience and Maths Concepts and Formulas for Class 10 Term 2 Exams How this concept and formula booklet is going to help you in your term 2 exam? If this question comes to your mind, then think of the revision tools missing while taking the exam. The theory part is clear…
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Practice Sheets for CBSE Class 12 Term 2 Examination
Last modified on:4 years agoReading Time:2Minutes Practice Sheets for CBSE Class 12 Term 2 Examination We are providing practice sheets for CBSE Class 12 Term 2 Examinations. The questions are prepared strictly according to the latest syllabus prescribed by CBSE board. Practice sheets for Physics, Chemistry, Maths, Biology and English are available. Practice Sheets CBSE Class…
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MCQ Questions for Class 11 Physics Chapter 9 Mechanical Properties of Solids
Last modified on:4 years agoReading Time:19MinutesQ.1. Which of the following materials is most elastic?(a) Steel (b) Rubber(c) Copper (d) Glass Answer Answer: (a) Young’s modulus of elasticity is highest for steel and Greater the young’s modulus larger is its elasticity. Q.2. The property of a body by virtue of which it tends to regain its original…
