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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Case Study Questions for Class 12 Maths Chapter 7 Integrals
Last modified on:3 years agoReading Time:2MinutesCase Study Questions for Class 12 Maths Chapter 7 Integrals Case Study Questions: Question 1: Read the following text and answer the following questions on the basis of the same: (i) Find the value of (ii) Find the value of (iii) Find the value of (iv) Find the value of (v)…
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Trigonometry Formulas for Class 10 Maths
Last modified on:3 years agoReading Time:10MinutesHere we are providing trigonometry formulas for class 10 maths. Students are suggested to remember these formulas so that there won’t be any problem in solving questions related to trigonometry. Trigonometry formulas Class 10 are related to the relationships between the sides and angles of a right-angled triangle. Trigonometric ratios are…
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Math Formulas for Class 11 Chapter 5 Complex Numbers and Quadratic Equations
Last modified on:3 years agoReading Time:7MinutesMath Formulas for Class 11 Chapter 5 Complex Numbers and Quadratic Equations Imaginary Numbers The square root of a negative real number is called imaginary number, e.g. etc. The quantity is an imaginary unit and it is denoted by ‘ i ‘ called iota. Integral Power of IOTA(i) Algebra of Complex…
