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:5 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:5 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:5 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 DPP Biology Ch-24 Sexual Reproduction In Flowering Plants
Last modified on:5 years agoReading Time:27MinutesQ.1. Entry of pollen tube through micropyle is(a) Chalazogamy (b) Mesogamy(c) Porogamy (d) Pseudogamy Answer Answer: (c) In porogamy the tip of pollen tube enters the micropyle, pushes through the nucellar tissue & finally pierces the eggapparatus end of the embryo sac. If pollen tube enters through the chalazal side it…
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Physics MCQs for Class 12 with Answers Chapter 3 Current Electricity
Last modified on:1 year agoReading Time:32MinutesMCQs based on Current Electricity: Q.1. In a current carrying conductor the net charge is(a) 1.6 x 10–19 coulomb (b) 6.25 x 10–18 coulomb(c) zero (d) infinite Answer Answer: (c) Explanation: In a current carrying conductor, the net charge is zero. Q.2. The current which is assumed to be flowing in…
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MCQ Questions on Refraction of Light for Class 10 Science
Last modified on:4 years agoReading Time:15Minutes Question 1:Four students showed the following traces of the path of a ray of light passing through a rectangular glass slab.The trace most likely to be correct is that of student:(a) I (b) II (c) III …
