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Physics

Questions tagged [electrons]

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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.

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59views

For example, the electromagnetic field surrounding a hydrogen atom has less energy than the sum of the energies of an electromagnetic field surrounding an isolated electron and an electromagnetic ...
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After getting this answerYou have to do work when removing the electron from the atom, which is the potential energy gained in the system, and you lose this potential energy when you "reunite&...
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While special relativity says inertial mass is equivalent with energy, there are at least two more types of mass, for which equivalence seems not so certain - let me briefly summarize and ask for more ...
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I am trying to learn about electricity and how it works. I want it to make sense to me before diving to electronics.I understand that static electricity or a shock is the neutralisation of an ...
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1answer
491views

Why is the sequence of atomic orbitals (1s, 2s, 2p, 3s, 3p, 4s, 3d, …) the same for all elements, cf. the Aufbau principle, even though different elements have different numbers of electrons?
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Is electrons magnetic moment an intrinsic property of matter? The question arises because of the question of charge as an intrinsic property of matter.
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2answers
145views

I've learned that the electric field points from the positive terminal (higher potential) to the negative terminal (lower potential). Since the force on an electron would be opposite to the field, ...
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1answer
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One ampere corresponds to the flow of approximately $6.241 509 074 × 10^{18}$ elementary charges passing a cross-sectional area in one second as per the 2019 revision of SI, fixing the elementary ...
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I have currently inputted the full Dirac equation for a free electron in space in Desmos. However, I haven't been able to find a good way to represent it. Singular spinors can be represented by hopf ...
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I was taught electrons accelerate in the conductor but their acceleration is matched by the resistance thru collisions causing them to move at a pretty much uniform speed. Since collisions and ...
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1answer
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When we talk about electrons as sources of electric/magnetic fields, their positions and motions determine the field configurations. At the same ...
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Let's say there was a battery branched into 2 and connected to resistors of equal resistance. However, if one of the branch has 1-2 more resistors in its path, before ending at terminal. Which path ...
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2answers
201views

Let space have a spatially homogeneous magnetic field $\vec{B}$ that is changing with time (in other words, $dB/dt>0$). If we place in a circular wire, the changing magnetic field will create an ...
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Rhetorical question but if you have a good answer I'd like to hear it. I understand well why electron volt is used for mass, so I'm not just looking for a rehash as to how this could apply to ...
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This is just a mini tesla coil exciting an Eisco neon discharge lamp. The detector is a MightyOhm geiger ++ which detects beta and gamma radiation. I'm recording 30-60 CPM just with background ...

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