Fundamentals — Electromagnetic Field Theory

An electric current or a changing electric field creates a magnetic field. This is how electromagnets and antennas function. Why Does This Matter?

Without EMFT, our "wireless" world would be silent. When an electric field and a magnetic field keep regenerating each other, they form an . Electromagnetic Field Theory Fundamentals

There are no "magnetic charges" (monopoles). You can’t have a North pole without a South pole. If you cut a magnet in half, you just get two smaller magnets. An electric current or a changing electric field