Understanding Electromagnetic Flux and the Electric Field: A Simple Explanation

[chound]

What exactly is electromagnetic flux?
In wikipedia I read it is the " surface integral of a vector field" what is a vector field?

Is it the electric field.

What exactly is the electric field? Please explain it to me with using gravitational peotential, etc. as an example.

How is the charge inside a charged sphere nil?

 

[vanesch]

I think you should look up an introductory text on electromagnetism. We won't be typing up one for you here, you know
If you want, we can try to find some ressources, but the best thing is probably to read a book on it and if you have questions, to come here.

For starters, you can look here:

http://en.wikipedia.org/wiki/Electric_field

 

[jtbell]

Here's another good place to start:

http://hyperphysics.phy-astr.gsu.edu/Hbase/electric/efiecon.html#c1

The ovals in the diagram are buttons that you can click on to get an explanation.