All Questions
40
questions
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127
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Why should an electron falling into the nucleus, according to the Maxwell's laws of electrodynamics, destroy the atom?
It is often said in physics and chemistry classes and textbooks that atoms must be unstable when the electron continuously loses energy and finally fall into the nucleus according to classical physics....
- 1
3
votes
2
answers
127
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Radiation from accelerated charged in a co-accelerated reference frame
I was wondering if I sit on a accelerated charge particle I will not observe radiation since the particle is at rest according to me. But my friend observes it from outside and he will see radiation ...
- 67
0
votes
1
answer
66
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Paradox in the observation of ripple
What I am going to speak about may not be a paradox but i see a contradiction here so I used used the word "paradox". To begin with, let there be 2 charges A and B which are stationary with ...
- 21
1
vote
3
answers
112
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Accelerated Electric Charges
We know that an accelerated electric charge produces electromagnetic radiation.
We also know that acceleration is relative to an observer.
Take electrically neutral observers A and B, who are ...
- 141
1
vote
2
answers
162
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Energy-work theorem and dissipation of energy by an accelerating charge
By the work energy theorem we have that the total energy of a nonrelativistic point charge, $q_0$ of mass $m$, moving in an electric field $\mathbf{E}$ is
$ E = E_k + U_e = \frac{1}{2}mv^2 + q_0V \...
- 307
-1
votes
2
answers
65
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If we vibrate a charged mass, will it radiates or not? [closed]
It is said that electromagnetic radiation created from accelerated charged particle.
I want to mechanically vibrate a charged mass , then will it radiates or not?
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1
vote
1
answer
92
views
Intuitive explanation for coefficient in the Larmor formula
So the Larmor formula tells us the total power radiated by an accelerating point charge that doesn't go too fast with respect to the speed of light is $P=\frac{2}{3}\frac{q^2 a^2}{c^3}$ (written in ...
- 11
2
votes
2
answers
149
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Which equations indeed describe moving/accelerated charge field?
The thing that I have not understood completely, for 100%, is how does the field of the electric charge is "updated".
If to consider a frame of reference where the charge is static, does ...
- 361
0
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0
answers
39
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Free-falling electron [duplicate]
An electron freely falls in the Earth's gravity, while being enclosed in a cylinder that contains energy detectors. The electron accelerates and therefore radiates energy, which is detected. However, ...
- 151
0
votes
1
answer
94
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Sidney Coleman's argument that a hyperbolically accelerated electron radiates
On page 35 of Sidney Coleman's Classical Electron Theory from a Modern Standpoint, he writes:
If we remember that in Maxwellian dynamics, the radiation field is
given by the difference of the ...
- 3,284
1
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0
answers
62
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How to apply Maxwell's equations to electromagnetic waves? [closed]
You know how antennas work and create EM waves...They oscillate charges which create EM waves
Well I'm not satisfied with that explanation so it would be great if you could use maxwells equation to ...
- 1,189
3
votes
2
answers
1k
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Why would an orbiting electron lose energy?
Ernest Rutherford proposed that the electrons were orbiting around the nucleus just like planets orbiting around the sun. However, this simple picture defied the laws of physics. Electrons revolving ...
- 1,329
0
votes
2
answers
83
views
Can I shake a charge to illuminate my surroundings?
If I put charge on the tip of a rod and shake it back and forth at the right frequency, can I illuminate my surroundings?
According to my understanding of Maxwell equations this would create EM waves ...
- 866
2
votes
0
answers
31
views
Regarding accelerated charges produce electromagnetic waves [duplicate]
I know that accelerating charges produce electromagnetic waves. I do not however understand the main reasoning behind this. Most of my knowledge of this topic is from internet sources and stack ...
- 548
2
votes
2
answers
353
views
Is constant acceleration not enough for radiation?
A reference source: Does A Uniformly Accelerating Charge Radiate?
Consider the behavior of a DC current compared to an AC current.
Direct current: has locally fast moving free electrons that ...
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