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I don't really like the whole wave-particle duality business because it obscures the more startling truth about particles: they aren't sometimes waves and sometimes particles, and they also don't transform into waves sometimes before reforming as particles, they are something completely different. It's like the story of the blind men and the elephant: a ...

9

The waves of quantum mechanics are probability waves. The solutions of quantum mechanical equations are the wave functions and the square of the wave function gives the probability of finding the particle at $(x,y,z,t)$. That is why the solutions for the electrons in the field of a nucleus are not orbits, but orbitals, i.e. probability distributions. The ...

7

It seems that you have misundrstood the wave-particle duality. What happens in the double slit experiment is that the electrons impact at the screen as they were particles. But they also interfere, just as waves. So you can see a wave-particle behaviour. But it doesn't say that the electron is destroyed, becomes a wave and then a particle again (as you ...

5

I'm not sure I've understood your question but I think you're asking if a big wave can have wave-features on its large features. If so, sure, why not? You can add waves of different frequencies to achieve results like:

4

As Mostafa says, it is macroscopically at equilibrium, not necessarily microscopically. There may be one misunderstanding you have, which is about "surface". I will talk about it later. In my opinion, equilibrium should be understood as no electron moving. It is easily to show that the electric field in conductor is zero. If the electric field is non-zero, ...

3

You are right in that a magnetic field is build up, which generates a electric field opposing the given potential. But the consequence is not an oscillation of current, but only a damping of the increase of the current. Therefore, if you have a Heaviside step function for the voltage, it'll result in an "exponential" increase of your current ($I(t) = I_0 ... 3$\def\vE{{\vec{E}}}\def\vS{{\vec{S}}}\def\vA{{\vec{A}}}\def\rot{\operatorname{rot}}\def\grad{\operatorname{grad}}\def\div{\operatorname{div}}\def\ph{{\varphi}}\def\vn{{\vec{n}}}\def\vr{{\vec{r}}}$The charge floating through the wire causes a current density$\vec{S}$in the wire (not only on the surface). This causes an electrical ... 3 The wave-particle duality thing becomes important when you are dealing in a microscopic scale where quantum mechanics becomes relevant and you have to discard your ordinary notion of particle and wave. So don't expect to relate "particle" or/and "wave" notion that you usually get from picturing a marble or water wave from classical world surrounding you. ... 2$k$is just a quantum number.$\hbar k$gets its name "crystal impulse" from the fact, that the formula for a band structure without interaction (free electrons) coincides with the formula you get with the definition of classical impulse in terms of$k$, but it is NOT an actual impulse. For a free electron we have the energy dispersion: $$\epsilon(k) = ... 2 The dispersion relation gives you information regarding the relation between momentum of electrons, and energy of such electron. Heisenberg's uncertainty principle relates uncertainty in the position versus uncertainty in momentum, which is a very different issue. If you consider a single massive free particle, it also possesses a dispersion relation in the ... 2 The process could in general take place. A sample diagram is: \hspace{4cm} With regards to Parity: Assuming the electron-positron pair don't have any angular momentum, the initial Parity is -1. Assuming the \eta_C\eta_C pair don't have any angular momentum, their Parity is +1. Thus in this case the reaction cannot occur. If we assume the ... 2 Equilibrium in the sense of this question means there are no net forces on the objects that make up the system: the charges contained in the conductor. Note that we need a model of an ideal conductor here. A neutral ideal conductor is thought of as containing equal large amounts of unbound, infinitely small (not electrons) positive and negative charges. ... 2 The energy is the energy required to remove the electron from the atom to an infinite distance, or alternatively it's the energy released when you bring an electron from an infinite distance into the orbital. We generally define the potential energy at infinity to be zero. This is a convention because potential energy has a global gauge symmetry and we ... 2 Feynman explains it best in this classic video, but here are some of the essentials. Magnets attract and repel at a distance, and there is really no way of rephrasing that fact which will explain this force in terms of "winds of force" or any similar construct and which will not incur inaccuracies and inconsistencies that will render it completely useless. ... 1 A heuristic account of why this is can be found in the triboelectric series, which is a small list of materials along with their tendencies to become positive or negatively charged when rubbed in contact with each other. As is briefly explained in the article and on this webpage, part of the reason why this series is in the order it happens to be in has to ... 1 First, what is excitation? "Excitation is an elevation in energy level above an arbitrary baseline energy state". So, for atom to get excited, it needs to absorb some amount of energy, which is described by energy levels for each element. When atom "come in contact with photons", it is usually photon having certain energy that, if enough to move shell's ... 1 For a De Broglie wave, in the equation E = hf, E is the total relativistic energy, considering rest mass and kinetic energy (E^2 = p^2c^2 + m^2c^4). You cannot compare this to the kinetic energy alone. Also, for a De Broglie wave, the phase velocity and group velocity are different. The particle velocity corresponds to the group velocity, whereas in ... 1 The laws of conservations of momentum and energy combined forbid the reaction$$e^- + \gamma \rightarrow e^-$$(Go ahead and do the math, is simple and enlightnening). But a completely different story is:$$e^- + \gamma \rightarrow e^- + \gamma$\$ Where the incoming photon has a different energy that the outcoming one. And also, you can have an ...

1

In the first chapter of Sze's classic Physics of Semiconductor Devices, one can find: (1) in low electric fields, the drift velocity of carriers is proportional to the electric field strength (section 1.5 in the 2nd edition). It then gives a number of approximations, depending on the primary scattering mechanism. (2) in high field regions, nonlinearities ...

1

Electron is accompained by waves, so there still exists electron which has mass. This solves your problem I hope. Look here at what de Broglie says in his Nobel lecture of 1929 (this is an extracted portion): I thus arrived at the following overall concept which guided my studies: for both matter and radiations, light in particular, it is ...

1

An electron gun has a strict electronics definition is an electrical component in some vacuum tubes that produces a narrow, collimated electron beam that has a precise kinetic energy. The largest use is in cathode ray tubes (CRTs), used in older television sets, computer displays, and oscilloscopes. They are also used in microwave linear beam vacuum ...

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