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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Charging of Insulators
Last modified on:4 years agoReading Time:2Minutes 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…
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Charging by Contact
Last modified on:4 years agoReading Time:2Minutes Charging by Contact When a negatively charged ebonite rod is rubbed on a metal object, such as a sphere, some of the excess electrons from the rod are transferred to the sphere. Once the electrons are on the metal sphere, where they can move readily, they repel one another and…
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Charging by Rubbing
Last modified on:4 years agoReading Time:3Minutes Charging by Rubbing The simplest way to charge certain bodies is to rub them against each other. When a glass rod is rubbed with a silk cloth, the glass rod acquires some positive charge and the silk cloth acquires negative charge by the same amount. The explanation of appearance of…
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Numerical Problems Based on Class 11 Physics Projectile Motion
Last modified on:3 years agoReading Time:6MinutesNumerical Problems Based on Class 11 Physics Projectile Motion Q.1. A cricketer can throw a ball to maximum horizontal distance of 160 m. Calculate the maximum vertical height to which he can throw the ball ? Given g = 10 m/s2. Q.2. A ball is thrown horizontally from the top of…
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Numerical Problems Based on Class 11 Physics Chapter 3 Motion In A Straight Line
Last modified on:3 years agoReading Time:13MinutesNumerical Problems Based on Class 11 Physics Chapter 3 Motion In A Straight Line Q.1. A body starting from rest has an acceleration of 20 m/s2. Calculate the distance travelled by it in 10th second. Ans. 190 m Q.2. A car travelled the first third of a distance x at a…
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Extra Questions for Class 12 Biology Chapter 12 Biotechnology and its Applications
Last modified on:4 years agoReading Time:11MinutesExtra Questions for Class 12 Biology Chapter 12 Biotechnology and its Applications Here we are providing extra questions for class 12 biology. This post covers extra questions for class 12 biology chapter 12 Biotechnology and its Applications. Students can read and practice these questions to score better marks in the exam.…
