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What is the difference among Free Electron Theory and Band Theory of solids?
Free Electron Theory:
This theory says that, metals conduct electricity due to the presence of free electrons in it. The outermost shells of metal atoms will be loosely bound with their nucleus. So the electrons in it are free to move anywhere in the solid.
These electrons are known as free electrons and these electrons are responsible for the conduction of electricity.
maximum 20 mA current can flow through a zener diode.if zener voltage 6V how much resistance will have to be applied in series with the zener diode for 9V supply? calculate load cu
Q. Define: the temperature coefficient of resistance. The ratio of raise in resistance per degree rise in temperature to its resistance at 0 o C is called as temperature coeff
How is Specific Gravity defined? Specific Gravity, SG, is a unit less quantity that provides the scientist or engineers an idea of how dense a substance is compared to water. T
A certain machine exerts a force of 200 Newton on a box whose masses 30 kilograms. The machine moves the box a distance of 20 meters with a horizontal floor. What amount o
The image of a candle is produced by a convex lens on a screen. The lower half of the lens is painted black to make it completely opaque. Illustrate the ray diagram to show the ima
Majority and minority charge carriers A pure semiconductor has equal number of holes and electrons. But an extrinsic semiconductor has majority charge carriers. When a tri
when p type and n type semiconductor are joined or connected it is called p-n junction...in p-n junction the holes from p-type diffuse to n-type and vice versa....an finally a depl
Copper is completely miscible with (A) Nickel. (B) Gold. (C) Hydrogen. (D) Lead. Ans: Copper is completely miscible with gold.
What is the angle between plane of polarization and plane of vibration?
list of anekardhi shabdh with examples
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