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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Important Questions For Class 10 Science Chapter 5- Periodic Classification of Elements
Last modified on:5 years agoReading Time:16MinutesQ1. Give one example of Döbereiner’s Triad. Ans. Li, Na, K 7 23 39 Q2. How many triads could Döbereiner identify from the existing elements then? Ans. Döbernier could identify only three triads. Q3. What is the limitation of Döbereiner triads? Ans. He failed to arrange all the elements in triads…
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Important Questions For Class 10 Science Chapter 4- Carbon and its Compounds
Last modified on:5 years agoReading Time:10MinutesVERY SHORT ANSWER TYPE QUESTIONS (1 Mark) Q1. What is a hydrocarbon?Ans. It is a compound of hydrogen and carbon. Q2. Give different forms in which carbon occurs in nature.Ans. Carbon occurs in free form e.g., graphite and diamond in combined form like carbon dioxide, carbonates, etc.In earth’s crust–0.02% and in…
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How can you calculate JEE Main 2019 Rank based on NTA Percentile?
Last modified on:5 years agoReading Time:5MinutesThe JEE Main Result for January 2019 session was declared on 19th January 2019 so now to answer the big question that is on everybody’s mind is that How can we calculate JEE Main Rank based on NTA percentile? NTA has released the percentile score for the JEE Main January session.…
