Linked Questions

1 vote
2 answers
847 views

Confusion regarding depiction of Electromagnetic Waves [duplicate]

Have a look at the image below, It depicts Electric and Magnetic field components of electromagnetic wave. I'm a bit confused about whats happening here.I mean is the electric field changing with ...
Divyanshu's user avatar
  • 478
12 votes
3 answers
16k views

In electromagnetic radiation, how do electrons actually "move"?

I've always pictured EM radiation as a wave, in common drawings of radiation you would see it as a wave beam and that had clouded my understanding recently. Illustration on the simplest level: Which ...
Xander's user avatar
  • 135
1 vote
2 answers
20k views

How to determine directions of vectors of an electromagnetic wave

I did an exercise which probably is quite popular, in which you draw an electromagnetic wave and prove that it should propagate at the speed of light $1 \over \sqrt {\mu_0\epsilon_0}$ using Farday's ...
fiftyeight's user avatar
  • 1,075
3 votes
2 answers
6k views

On the shape of magnetic and electric fields in an electromagnetic wave

Electromagnetic waves are generally depicted like this: Where the electric fields and magnetic fields exist in the planes perpendicular to the direction of propagation. I also realize that as the ...
Gerard's user avatar
  • 2,730
3 votes
3 answers
2k views

What exactly is Electromagnetic Radiation?

I don't understand how and why the electric and magnetic fields oscillate in the electromagnetic radiation wave, and any way where do these fields originate from, for there are no charged particles in ...
Sara's user avatar
  • 81
0 votes
2 answers
721 views

What exactly are EM waves? [closed]

What exactly are EM waves? Wave is just a graph of the intensity of energy at the given point in space right? At a particular point in space, we detect that energy is going up ad then down with each ...
lobstein's user avatar
1 vote
1 answer
1k views

How does a photon move in an electromagnetic wave?

Electromagnetic waves by definition has a changing electric and magnetic field. Photons are sent radially outwards by a charge and thereby constitute the electric field. Then how could an oscillating ...
Ramesh.R's user avatar
0 votes
0 answers
380 views

What is the electric field part of an EM wave? Radiation field or the induction field?

Look at this image: I wonder if the electric field is from the induction field from a vibrating electron or the radiation field? If it is from the radiation field, as I suppose, than can someone ...
davinciho87's user avatar
0 votes
2 answers
78 views

What exactly is an electromagentic wave?

Helo. I was watching walter lewin lecture on electromagnetic waves, and since its a prerecorded video, i cant raise my hand and ask a question, and so i am here. The math is a foreign language to me ...
Energy Forever's user avatar
0 votes
0 answers
92 views

Why does audio wave look like a wave? How to prove

I have googled for answer but, did not get any satisfactory result. I want to know that, why does audio wave or in general sense radio waves look like a wave. I mean basically how to prove that when ...
Sachin G.'s user avatar
  • 101