An electric field, is always associated with a charge. Then, if photon, or light is a cargless paricle, then what does the elecric field component of the associated elecromagnetic wave mean?
2007-06-20 19:13:28 · 9 answers · asked by pappu bhai 1 in Science & Mathematics ➔ Physics
A photon is a particle and has nothing to do with electromagnetic waves... That's why you can't seem to figure out the answer to your question. Each discreet quantum packet of light (photon) does not act like a wave at all. If you observe light acting like a wave, then different rules apply!
Fun huh...
Go here for more detail...
http://theory.uwinnipeg.ca/mod_tech/node154.html
http://en.wikipedia.org/wiki/Wave-particle_duality
2007-06-20 19:23:10 · answer #1 · answered by erikfaraway 3 · 0⤊ 0⤋
Around a charge, there is an electric field. The field is enclosed in a sphere of radius infinity. Therefore it is not correct to use the word ‘enclosed’.
The field has no charge. However if we place a charge in this field it will be set into motion.
This is the basic difference between a charge and field.
If the charge oscillates about the point, there is a corresponding change in the field also.
The field oscillates at every point in the space.
When a charge at a point oscillates, another similar charge which is very far away from this point and confined to that point will now oscillate according to the vibrations of the point charge.
Therefore energy is transmitted from one point to another point in the form of a wave.
When a charge is at rest, there is no magnetic field around it. When it is in motion, there is magnetic field around the charge. This field unlike the electric field is a closed one. However the field is felt at infinite distance.
Thus pulsating charges produce electric and magnetic filed which travels to infinite distance, and are called electro- magnetic filed and the field contains no charge. However they can affect charges at infinite distances.
This is the principle used in radio communication.
The energy transmitted by the wave is not continuous but is transmitted in discrete pockets of energy called photons. Photons are energy pockets having wave like properties. They are not charges and are fields of energy.
2007-06-20 22:48:17 · answer #2 · answered by Pearlsawme 7 · 0⤊ 0⤋
An electric field is not always associated with a charge. It can be generated by a changing magnetic field, which is what happens with an electromagnetic wave. The changing electric field generates a magnetic field.
2007-06-20 19:49:41 · answer #3 · answered by Helmut 7 · 0⤊ 0⤋
donot get two aspects of light together
we know that light is a wave and a particle
but not both at the same time
i.e. you cannot have an experiment showing both natures of light
the classical theory of light or the wave theory does prove that light is a wave- produced by oscillating dipoles, decelerating charges
the quantum theory talks of quanta-packets of energy-
you know from Maxwell's equations that an time varying magnetic field causes an electric field and vice-versa
this is the basis- to create an electric field it is not necessary to have charge.
2007-06-22 19:30:08 · answer #4 · answered by photon 2 · 0⤊ 0⤋
See the pointis Light the dual property to behave as wave and as well as particle, if you are goint to take wave property you can easily explain phenomena like interference for qualtum physics you have to consider light as a particle, ( pack of energy ) in both cases whether wave or particle there is no question of charge because thats the basic property of electro magnetic spectrum , If you need to know the basics go fo Halliday and Resnick book , simple and clear way of explanation
2007-06-20 19:35:02 · answer #5 · answered by sanntovaz 3 · 0⤊ 0⤋
solar generates easy as a effect of thermonuclear reactions as is the case with all the celebs. the quantity or the density of photons falling on a floor count on the area from the solar. The solar isn't the comparable whilst considered from right here on earth or on Pluto. there is no longer something surprising concerning the quantity of photons emitted because it per a megastar of solar's importance.
2016-10-08 22:38:45 · answer #6 · answered by hammet 4 · 0⤊ 0⤋
THE ELECTRIC FIELD COMPONENT EXISTS BUT THAT LIGHT TRAVELS AT VERY HIGH SPEEDS HENCE WE CONSIDER RELATIVITY OF THE LIGHT PARTICLE IN WHICH CASE THE ELECRITC FIELD COMPONENT IS NEGLIGABLE AND SO THE PHOTON IS CONSIDERED CHARGELESS
2007-06-20 22:41:01 · answer #7 · answered by SAMUEL C 1 · 0⤊ 0⤋
light is an electromagnetic wave not photon.
Photon is the elementary particle in the light.
2007-06-22 15:58:23 · answer #8 · answered by kchl_dk007 3 · 0⤊ 0⤋
that is why light is both wave & particle.
photon is a packet of energy that explains the particle nature.
It is a boson, with no charge.
It is not concerned with wave.
2007-06-22 04:04:15 · answer #9 · answered by Anonymous · 0⤊ 0⤋