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 4 Linear Equations in Two Variables
Last modified on:3 weeks agoReading Time:8Minutes Looking for high-quality practice material for your math exams? You’re in the right place. Below, we are providing important Case Study Questions for CBSE Class 9 Maths Chapter 4 Linear Equations in Two Variables. These passage-based questions are perfectly aligned with the latest syllabus to help you practice competency-based learning.…
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Case Study Questions for Class 9 Maths Chapter 3 Coordinate Geometry
Last modified on:3 years agoReading Time:2MinutesCase Study Questions for Class 9 Maths Chapter 3 Coordinate Geometry Case Study Questions Question 1: Saumya has to reach her office every day at 10:00 am. On the way to her office, she drops her son at school. Now, the location of Saumya’s house, her son’s school and her office…
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Case Study Questions for Class 9 Maths Chapter 15 Probability
Last modified on:3 years agoReading Time:2MinutesHere we are providing Case Study Questions for Class 9 Maths Chapter 15 Probability. Case Study Questions for Class 9 Maths Chapter 15 Probability Case Study Questions Question 1: A jeweller has different types of bracelets in his shop. Sunita wants to purchase a bracelet for her sister’s birthday gift. When…
