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electric field

 
 
5him
 
Reply Sun 17 Jan, 2016 01:15 am
Sir, how much area an electric field surrounds? is the area of the electric field measurable or it is spread to infinity?
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Ragman
 
  1  
Reply Sun 17 Jan, 2016 07:04 am
@5him,
there is no way to quantify your answer. It's too vague.
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Ragman
 
  1  
Reply Sun 17 Jan, 2016 08:47 am
@5him,
Perhaps you should be looking at Coulomb's law: Follow this link (if it works) or look it up yourself in Wikipedia to get a working link:
https://en.wikipedia.org/wiki/Coulomb's_law

"Coulomb's law states that:

The magnitude of the electrostatic force of interaction between two point charges is directly proportional to the scalar multiplication of the magnitudes of charges and inversely proportional to the square of the distance between them.

The force is along the straight line joining them. If the two charges have the same sign, the electrostatic force between them is repulsive; if they have different signs, the force between them is attractive."
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puzzledperson
 
  0  
Reply Tue 19 Jan, 2016 07:12 pm
@5him,
The volume (not area) of an electric field is unlimited: this follows from the inverse square law.
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puzzledperson
 
  1  
Reply Tue 19 Jan, 2016 09:56 pm
@5him,
I'd like to modify my earlier answer.

The electric field is emitted by a charged particle and travels at the speed of light. So, while the volume of an electric field is not fixed and can expand without limitation, there are nuances.

For example, let's say that through a radioactive decay or a particle accelerator collision or some other event, a new charged particle is created. The volume of the electric field will depend on the time elapsed since its creation. So it is possible that it could be as small as you like at a particular time after its creation.

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