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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CBSE 10 Science Ch-07 Control and Coordination (NCERT Solution)
Last modified on:5 years agoReading Time:26MinutesNCERT SOLUTION Chapter-07 Control and Coordination Question 1: What is the difference between a reflex action and walking? Answer: A reflex action is a rapid, automatic response to a stimulus. It does not involve any thinking. For example, we close our eyes immediately when the bright light is focused. Walking, on the other…
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CBSE 10 Science Ch-12 ELECTRICITY
Last modified on:5 years agoReading Time:2MinutesChapter-12 Electricity • Charge is a fundamental particle in an atom. It may be positive or negative. • Like charges repel each other. • Unlike charges attract each other. Coulomb (C) : S. I. unit of charge 1 Coulomb charge = Charge present on approx. 6 × 10^18 electrons • Charge…
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How do Organisms Reproduce
Last modified on:5 years agoReading Time:22MinutesHow do Organisms Reproduce Reproduction is the process by which living organisms produce new individuals similar to themselves. It ensures continuity of life on earth. Nucleus of the cell contains DNA (Deoxyribose Nucleic Acid) which is the heredity material. DNA replicates and forms new cells causing variation. So, these new cells…
