Hi there. My class has recently started on magnetism and I am facing a problem already. I understand that you get a magnetic field when a charge is moving. However, what I do not understand is why that actually happens. And how is it that this field can actually exert a force on something magnetic. Is it another of Physics unsolved mysteries, like why like charges repel? However, it is easier to understand how electric fields work since there is a substantial source... charge or even for gravity... mass. But I don't see anything quite as clear as magnetism.