How are electric and magnetic fields connected to virtual photons?

[Mattara]

What is the difference between an electric and a magnetic field? Are both related to virtual photons? Is an electric field the result of the presence of charged particles, while the magnetic field is a result of the movement of charged particles?

 

[Pseudo Statistic]

Magnetic field is a relativistic part of the electric field or whatever.
http://en.wikipedia.org/wiki/Magnetic_field

 

[Hootenanny]

And to answer one of your questions, yes both the electric and magnetic force is thought to be mediated by exchange photons. Often, they are considered together as http://en.wikipedia.org/wiki/Electromagnetism"