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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Class 11 Chemistry Ch-14 Environmental Chemistry (VSQ)
Last modified on:5 years agoReading Time:12MinutesQ.1. Name the different regions of the atmosphere alongwith their altitudes. Answer Answer: Troposphere (0-10 km, stratosphere (10-50 km), mesosphere (50-85 km), thermosphere (85 – 500 km). Q.2. In what regions of the atmosphere, the temperature increases with altitude and in which regions it decreases? Answer Answer: Temperature increases with altitude…
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Physics VSQs for Class 11 with Answers Chapter 11 Thermal Properties of Matter
Last modified on:5 years agoReading Time:9MinutesQ.1. What do you mean by triple point ? Answer Answer: It is a particular point in the phase diagram, representing a particular pressure and temperature at which a substance can coexist in all three phases in solid, liquid and gas. Q.2. Why the triple point of water is considered as…
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Physics VSQs for Class 11 with Answers Chapter 9 Elasticity
Last modified on:5 years agoReading Time:7MinutesQ.1. Why do a spring balance show wrong measure after long use? Answer Answer: After long use the spring gradually loses its elastic nature and doesn’t come back to its initial configuration completely after the weight is withdrawn. Q.2. Which is more elastic water or air and why? Answer Answer: Water…
