All Questions
8
questions
4
votes
3
answers
164
views
Origination of electromagnetic wave energy
Please correct me if I am wrong in my statements
While it is said that electromagnetic waves are formed by the oscillation (acceleration) of charges which forms 'kinks' in their electric field which ...
- 87
0
votes
1
answer
101
views
Is $∫ (1/2)εE^2 dV$ in the entire volume of rays propagation $= nhf$? [closed]
I asked it on ChatGPT but it gave kind of a mixed answer contradicting itself in the process several times here is some of it.
"Kushagra Singh:
~so you mean $∫ (1/2)εE^2 dV$ in the entire volume ...
- 19
1
vote
3
answers
2k
views
Energy transfer with electromagnetic waves
As we know that the electrical energy is transferred via electromagnetic waves from the source to the load. My question is that, even if there is transfer of energy through the electromagnetic waves, ...
- 962
1
vote
1
answer
273
views
Do Electric fields really contain energy in them? [closed]
If we assume that energy was first absorbed by q1 and then released by it which then reaches q2 , the same as , electric field not being absorbable and somehow magically gives the energy to q2 and q1 ...
1
vote
6
answers
866
views
Do frequency of electromagnetic waves determine its energy, actually?
In a disturbance in water, the effect of disturbance reduces at distance as the area the wave covers increases decreasing the energy density, ensuring total energy given remains constant.
Thinking ...
- 662
1
vote
1
answer
56
views
Magnetic and Electric energy for AC fields
In "Applied Frequency Domain Electromagnetics" (here the page) there are these two equations for the computation of the magnetic and electric energies stored in a certain volume $V_0$:
$$W_{...
- 1,319
10
votes
4
answers
3k
views
Standard formula for energy density of electromagnetic field
The formula for energy density of electromagnetic field in electrodynamics is
$$\frac{1}{8\pi} (\vec E\cdot\vec D+\vec B\cdot\vec H).$$
This formula appears in all general physics courses I looked at. ...
- 2,226
8
votes
6
answers
24k
views
What is beyond gamma rays and radio waves in the electromagnetic spectrum?
The electromagnetic spectrum is commonly referred to as consisting of;
radio-waves, microwaves, infrared, visible light, ultraviolet, X-rays, gamma rays - of increasing frequency from left to right.
...
- 1,191