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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.
lumen; lm: The derived SI unit of luminous flux, described as the luminous flux emitted through a uniform point source of 1 cd emitting its luminous energy on a solid angle of
What is a fiber optic sensor? Fiber optic sensor: A fiber optic sensor is a sensor which uses optical fiber either like the sensing tool ("intrinsic sensors"), or implies as
Why does the charge on the outer surface of a parallel plate capacitor doesn't change when it is connected by a battery. only inner surface charge gets affected. Why??
when to identical cells are connected either in series or parallel across a 2 ohm resistor they send the same current through it calculate the internal resistance of each cell?
in water equivalent how the temperature or water and solid equal?
When the two simple harmonic motions have the same periodic time but different amplitude and a phase dissimilarity = ∏/2: The resultant curve may be attained graphically as abov
1. A protein was observed to move 300 µm in 12.7 minutes at 23 ° C. Assuming its density and viscosity to be 1.34 g/cm 3 and 0.89 X 10 -2 g/cm s respectively, calculate the fo
Can the batteries used in the torch lights be recharged after their discharge? Give reason? Ans) No,because the NH4Cl corrods the zn containger gradually.so with out anode redox
Write down the condition for dispersion without deviation. Describe power of a lens. What do you mean by magnification?
Illustrates the formula of Rayleigh-jeans law? RAYLEIGH-JEANS LAW The energy distribution into the thermal spectrum is specified by given formula as follows: E λ = 8Πk
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