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:5 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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NEET Elasticity Important Questions
Last modified on:5 years agoReading Time:2MinutesCheck important questions and answers for NEET Exam. Practice these questions to improve your concepts and perform better in the actual test. These questions for NEET designed by GURUKUL is one of the best and complete study material as it covers all the important questions from the chapters which are in syllabus. We have…
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Numerical on Power of a Lens for CBSE Class 10
Last modified on:5 months agoReading Time:28MinutesUnderstanding the Power of a Lens: Concepts, Formulas, and Numericals When studying optics, understanding how a lens bends light is crucial. Whether you are dealing with a simple magnifying glass or complex optical instruments, the ability of a lens to converge or diverge light rays is measured by its Power. Here…
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Numerical on Refraction of Light for CBSE Class 10
Last modified on:5 months agoReading Time:18Minutes Numerical Problems on Refractive Index Class 10 Science · Light – Reflection and Refraction N Refractive Index & Snell’s Law Practice Set 1 Apply the formulas $n = \frac{c}{v}$ and $\frac{\sin i}{\sin r} = \frac{n_2}{n_1}$ Ch 10 · Light 1 Light travels through water with a speed of $2.25 \times…
