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[–]magnora7 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (0 children)

All photons have a magnetic and electric component. All light is made of photons.

Electricity is called such because it's the flow of electrons, the force of which was detected several decades (or centuries) before the magnetic aspect of electricity.

Electricity and magnetism are interlinked, it's called the electromagnetic field. The equations unifying these are called Maxwell Equations, and there's only 4 of them.

I don't really think the "applied magnetic field" picture means anything. I don't think rows 4-6 in that infographic have any real meaning other than to look cool.