All Questions
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Calculate Kinetic Energy of electron from effective mass?
The effective mass of an electron, due to special relativity, lower than the real mass. So I thought one can calculate from the mass ratio the velocity as it is dependent by a factor of $\sqrt{1-v^2/c^...
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Is effective mass used in calculating kinetic energy of electron in semiconductor?
Is effective mass used in calculating kinetic energy of electron in semiconductor? I recall it was just used to take into account the internal forces so that expression of force fits well. But why
$...
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Energy conversion of electrons in cathode rays
From the principle of conservation of energy, for each electron:
Electrical potential energy = Kinetic energy $$eV = \frac{mv^2}{2}$$ $$v = \sqrt\frac{2eV}{m}$$
where e is the charge of an electron, V ...
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Is an electron completely determined by its mass? [duplicate]
What I mean is, could a chunk of matter be "whittled down" or broken off from a larger chunk of matter to the point where it has the mass either exactly of an electron or close to that and ...
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When electrons move at high speeds, why is their mass LARGER than their rest mass? Why isn't it the opposite? [duplicate]
When an electron moves at a high speed, it has a large kinetic energy.
I know that E = mc^2 and so if an electron was travelling at a high speed, wouldn't the mass decrease in order to increase the ...
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Does $E=mc^2$ apply to electron shells with different energies? [duplicate]
Is this statement true: Each electron shell has a different energy level, with those shells closest to the nucleus being lower in energy than those farther from the nucleus. Mass of electron $= 9....
