upload????shankbond, do you have something to upload?
i do understand your point but what i want is a plane explanation(easy to understand).Here is a nice tutorial - http://www.colorado.edu/physics/2000/waves_particles/.
Google is very helpful - 3,080,000 hits on "electromagnetic waves".
EM waves are self-propagating waves of orthogonal electric and magnetic-fields - one cannot exist without the other. In essence they are a form of energy that arises fundamentally from the EM-force (one of natures 4 fundamental forces).can some body tell me what these waves are?
do they really are magnetic?
if yes then why arent they attracting iron objects towards them?
please help me out
You mean that the magnetic field in a EMW is too small and that is why you cannot prove it through experimentacion.Who says they don't attract metals, including iron?
Have you tried to calculate the magnetic field strength involved and comparing it with the field from a magnet that you can see move a lump of iron?
This is actually quite a complex subject as there are several variables/effects to consider here.Do you know of any experiments can you please elaborate more on this.
I thought the inverse square law was overthrown long ago.The magnetic field has a sine wave intensity distribution over this distance. It is also subject to the inverse square law.
That is exactly what I just said earlier.Not only this but any traction exerted by this magnetic field will be in constant change as the field reverses with the cycles.
Absolutely the magnetism and light are the two subjects Einstain was really interesting in studying. Check this out:thanks to all you guys ,
i just wanted to know that if i could produce and with a bit of manipulations i could control there magnetic force such as to focus there all energy to a particular point, this will save a lot of energy and will certainly limit the losses occuring in all electrical devices and also transformers.
And if the particles aren't moving and aren't charged?Look, the magnetic force on a moving charged particle is always perpendicular to the direction the particle is moving
Are we having a serious discussion or just messing about here?I thought the inverse square law was overthrown long ago.
EM waves will propagate only at the speed of light in free space. In any other media they will be slower. And in some cases the phase velocity (the velocity of a particular point on the wave, say, its crest) can indeed by greater than the speed of light, but the group velocity (the velocity at which information is transmitted) will always be less than or equal to c.To start properties of electric charges and magnetic fields are connected with the velocity of light!
Electromagnetic forces interact with metals.Electromagnetic forces donot attract any metals because they are too busy attracting each others changing polarities and interacting with the electric forces at the same time very rapidly.
A magnet does not have to be aligned in any specific way. The force produced by a magnet theoretically permeates all of the surrounding space, however at great distances it is assumed to be negligible. It is important to understand electromagnetics in terms of fields.Remember that the poles of a magnet has to be alined in a certain way in order to cause attraction (like poles repels unlike poles attract).
Regardless of its frequency, AC will never charge a battery so long as it has no DC component. It has nothing to do with the physical limitation of EM propagation.Imagine you are trying to charge a battery with AC, Can you? but it is a paradox if AC would be changing polarity at an infinite speed probably you could but we have a limit c.
If you want proof, go solve Maxwell's equations.You mean that the magnetic field in a EMW is too small and that is why you cannot prove it through experimentacion.
If you are referring to the inverse square law for electrostatics, no. If you mean that the power in an EM wave falls off at a rate proportional to the distance from its source, no again. This is a property of any wave propagating as an ever-expanding closed surface, as it is inherent in the geometry.I thought the inverse square law was overthrown long ago.
EM waves interact in just one way, as specified by Maxwell's equations.As I also said that EMW interact with metals in many different ways as I also said earlier.
You are correct in that the force exerted upon a charged particle is perpendicular to both the particle's velocity and the direction of the magnetic field, however there is no reason why magnetic forces can't be used to get the beam up to speed. This is exactly how particle colliders work.But magnetic forces cannot be used to get the beam up to speed in the first place, since they can only push it perpendicular to the electrons direction of motion, not forward along it.
This is much easier said than done! The theory of electromagnetism is quite dense, and Maxwell's equations are not for the non-mathematically inclined to delve into.now i think ,we should move this discussion on creating or knowing its more innovative aspects that have yet not been implemented .