Can anybody give me or point me to a model that describes how electromagnetism works from a photon force carrier perspective. I like to know how the virtual photons are generated around an electron. Also why electromagnetism is polar. I am also confused why moving electric fields create magnetic fields, and why the magnetic field creates the Lorentz force. The force carrier model seems simple when shown the Feynman diagrams but electromagnetic waves and magnetism confuse me under this model.