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Results tagged with electrons
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user 75502
Negatively charged particle with spin 1/2. A component of mundane terrestrial matter, and part of all neutral atoms and molecules. It has a mass about 1/1800 that of a proton. Its antiparticle is the positron.
2
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1
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How can we see the electrons?
As you can see the blue glows is the electrons flowing inside the cathode ray tube under vacuum condition. My question is how can we see the electrons in the setup? … electrons are everywhere but why don't they glow? …
- 13k
0
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1
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Do electron really experience any repulsive force while attracted by proton compared to posi...
I read up that the reason 2 electrons with same energy states can be binded to the first orbital of a necleus is due to one electron having positive spin half and another having negative spin half allowed … electrons don't make any difference? …
- 13k
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1
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How do we know electron have wavelength?
I know many people thought that light is a wave in the past before Einstein came along but what about electron, the scattering experiment could only hint at their existence so how do they know that el …
- 13k
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1
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Why don't valence electrons escape in a superconductor?
Here's what I imagine: we cool a material so that there is very little thermal vibration of atoms and the valence electrons can flow without resistance. … However, why don't the free electrons fly off when the circuit is energised? …
- 13k
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1
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If electron carries negative charge, why bother looking for it's electric dipole moment? [duplicate]
I got confused after reading about spherical electron, would there really be some type of unknown particles popping in and out of existence within the virtual particle cloud around the electron that g …
- 13k
12
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5
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How can two electrons repel if it's impossible for free electrons to absorb or emit energy?
How do 2 free electrons repel each other then? …
- 13k
3
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2
answers
183
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Only electron in the universe, does it produce magnetic field?
Imagine there is only 1 matter in the universe, a free electron. we can't tell if it is moving or not so does it produce magnetic field? I know it has an intrinsic spin but it is just a quantum value …
- 13k
0
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2
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Double slit experiment and Dirac Sea of electrons
Imagine a sea of electrons which is so tightly packed that exclusion principle comes into play, next I remove 1 electron from this sea... this hole should behave like a particle and is positively charged …
- 13k
3
votes
1
answer
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Intuition on why quantum hall effect?
I think I can understand hall effect using the right hand rule, the electrons experience lorentz force in the presence of a magnetic field but I don't get why quantum? … I saw the resistivity looks like a stepped graph why do electrons behave in such a manner like a current flowing through a multi stages zener diode? (OK I made up the multi stages) …
- 13k
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Does the proton do anything in a simple electric DC circuit? [closed]
Since the valence or free electrons and doing the flowing guided by electromagnetic field, what about the protons that are still stuck in the nucleus inside the wire, battery, resistor what have you those …
- 13k
37
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3
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Could a powerful gravitational wave cause electrons to emit light?
I imagine electrons being accelerated by passing gravitational waves, say from a nearby kilonova, so I would expect the electrons to emit light. Am I right? …
- 13k
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1
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Would there be any interference pattern if slit A becomes an accelerator?
The same doubleslit using electron, but this time I modified the experiment a little bit by adding an electric field at one of the slit to give the electron a kick. The screen behind the detector can …
- 13k
-1
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3
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If I shoots an electron in empty space and never measure it, is the electron still there?
Imagine there is an electron gun that is capable of emitting 1 electron at a time, the gun emits an electron directed at an empty space, no dust, no matter or anything that could interact with the ele …
- 13k
4
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1
answer
792
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Modified double-slit experiment - two electron sources instead of two slits
In the famous double-slit experiment, if I inserted two identical sources (i.e electron guns) at the locations of the slits, would I still see an interference pattern on the screen?
I would allow on …
- 13k
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1
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Can electron jumps to higher energy state without absorbing photon?
The shorter the wavelength of the electromagnetic wave the more energy it carries, when it hits an atom and gets absorbed the electron gains kinetic energy and jumps to higher energy state. Are there …
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