Does EM Wave induce emf in coil?

AI Thread Summary
Electromagnetic waves can induce electromotive force (emf) or current in a coil or inductor, as described by Faraday's law of electromagnetic induction. This occurs because the magnetic field associated with electromagnetic waves is continuously changing. Radio waves are a practical example, as they induce voltages in antenna wires, enabling devices like TVs and radios to function. The discussion suggests that all electromagnetic waves across the spectrum, including visible light, should theoretically induce current due to this principle. Therefore, it is accurate to say that electromagnetic waves can produce a Faraday effect.
Deadevil
Messages
21
Reaction score
0
Hi!
Does electromagnetic waves induced emf or current in the coil or inductor due to faraday law as the magnetic field is continously changing in em wave?
 
Physics news on Phys.org
Radio wave induce voltages in aerial wires etc.
 
It means each & every em wave in the em spectrum will produce faradays law effect? Which in turn means visible light in em spectrum also induce current as other EM Wave induces? Am I Right?
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
View full post »

Similar threads

B Understanding magnetic flux change during the falling of magnet
Replies
1
Views
1K
B Antenna induction, oscillating circuit generating EM Waves
Replies
6
Views
2K
Reversing the Faraday effect to get an induced current
Replies
3
Views
13K
How Is the Energy Density of EM Waves Related to Capacitors and Inductors?
Replies
6
Views
1K
I How an induced electric dipole vibrates with EM field
Replies
10
Views
2K
B Coil that conducts direct current
Replies
8
Views
819
EM waves, longitudinal EM propagation?
Replies
15
Views
3K
I How induction works within a coil (nuances of it)
Replies
6
Views
2K
I Questions about cancelation of induced EMF and minimizing eddy currents
Replies
4
Views
2K
B Experiment issues (electromagnetism)
Replies
42
Views
2K

Hot Threads

Recent Insights

Back
Top