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 9 Maths Chapter 1 Real Numbers
Last modified on:3 years agoReading Time:3MinutesCase Study Questions for Class 9 Maths Chapter 1 Real Numbers Case Study Questions: Question 1: Himanshu has made a project on real numbers, where he finely explained the applicability of exponential laws and divisibility conditions on real numbers. He also included some assessment questions at the end of his project…
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Case Study and Passage Based Questions for Class 10 Maths Chapter 15 Probability
Last modified on:3 years agoReading Time:3MinutesCase Study and Passage Based Questions for Class 10 Maths Chapter 15 Probability Case Study Questions: Question 1: On a weekend Rani was playing cards with her family. The deck has 52 cards. If her brother drew one card. (i) Find the probability of getting a king of red colour.(a) 1/26(b)…
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Case Study and Passage Based Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry
Last modified on:3 years agoReading Time:3MinutesCase Study and Passage Based Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry Case Study Questions: Question 1: Ananya is feeling so hungry and so thought to eat something. She looked into the fridge and found a bread pieces. She decided to make a sandwich. She cut the piece…
