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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NEET Biology Chapter 13 Photosynthesis in Higher Plants
Last modified on:4 years agoReading Time:32MinutesNEET Biology Chapter 13 Photosynthesis in Higher Plants Nearly all of the members (with some exceptions) categorized under the kingdom Plantae are autotrophic in nature. Being autotrophic gives the plants the ability to synthesize their own food for their own nutrition and well being as well as providing a source of…
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MCQ based on Newton’s Law of Gravitation
Last modified on:4 years agoReading Time:6MinutesMCQ based on Newton’s Law of Gravitation Q.1. Newton’s universal law of gravitation applies to(a) small bodies only(b) planets only(c) both small and big bodies(d) only valid for solar system Answer (c) It is applicable to both small & big bodies. Q.2. The value of G varies with(a) height above the…
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MCQ based on Kepler’s Law
Last modified on:4 years agoReading Time:9MinutesOne of the greatest ideas proposed in human history is the fact that the earth is a planet, among the other planets, that orbits the sun. Johannes Kepler discovered three empirical laws by using the data on planetary motion: Law of Orbits: Each planet moves in an elliptical orbit, with the…
