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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Conductors and Insulators
Last modified on:4 years agoReading Time:2MinutesConductors and Insulators Solids are mainly classified into two groups, conductors and insulators. In conductors, electric charges are free to move from one place to another, whereas in insulators they are tightly bound to their respective atoms. In an uncharged body, there are equal number of positive and negative charges. The…
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Electric Field Due to a Point Charge
Last modified on:3 years agoReading Time:1MinuteElectric Field Due to a Point Charge The electric field produced by a point charge q can be obtained in general terms from Coulomb’s law.First note that the magnitude of the force exerted by the charge q on a test charge q0 is then divide this value by q0 to obtain…
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Electric Field Due to a Charged Ring
Last modified on:3 years agoReading Time:4MinutesElectric Field Due to a Charged Ring A conducting ring of radius R has a total charge q uniformly distributed over its circumference. We are interested in finding the electric field at point P that lies on the axis of the ring at a distance x from its centre. We divide…
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Case Study Questions for Class 9 Science Chapter 12 Sound
Last modified on:2 years agoReading Time:7Minutes Board CBSE Useful for Class 9 Students Subject Science Chapter Chapter 12 Sound Question Type Case Study Questions No. of Questions 1 With Answers Yes Important Link Class 9 Chapterwise Case Study Case Study Questions for Class 9 Science Chapter 12 Sound Here we are providing case study questions for…
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MCQ Questions for Class 10 Science Chapter 14 Sources of Energy
Last modified on:3 years agoReading Time:7MinutesMCQ Questions for Class 10 Science Chapter 14 Sources of Energy Q.1. Which of the following is the renewable source of energy?(A) natural gas (B) petroleum (C) coal (D) wind Show Answer Answer: (D) Q.2. The energy liberated by charcoal on burning is(A) 30 kJ (B) 33 kJ (C) 35 kJ…
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MCQ Questions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current
Last modified on:3 years agoReading Time:26MinutesMCQ Questions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Here we are providing MCQ questions for class 10 science chapter 13 Magnetic effects of Electric Current. These questions useful for your exam, are prepared by subject expert. Practicing these questions will help you to perform better in…
