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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Physics
Last modified on:7 years agoReading Time:20MinutesPHYSICS In order to help students preparing for various Engineering and Medical Entrance Examination we are providing free STUDY MATERIALS on this blog. Do share with all your friends & relatives who are preparing for JEE & NEET. Enjoy your preparation. GOOD LUCK Physics Gurukul (Gurgaon) is a premier institute for…
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JEE Main-2019
Last modified on:8 years agoReading Time:7MinutesJoint Entrance Examination (JEE) MAIN will be conducted by the NTA from 2019 onwards. This Examination was being conducted by the Central Board of Secondary Education (CBSE) till 2018. JEE Main 2019 – The National Testing Agency (NTA) will be conducting the Joint Entrance Examination Main (JEE Main) 2019 twice in a…
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JEE (Mains & Advanced)
Last modified on:6 years agoReading Time:8MinutesIn order to crack IIT JEE (Mains & Advanced), candidates require a strong preparation. The syllabus is vast and if they want to master all the topics candidates should start preparing at least when they are in 11th standard or at least two years in advance. Remember it is not only…
