Kind of a knowledge gap here, how does an electrical field generate a magnetic field and how does it produce stuff like radio waves?
In: Physics
In some senses the answer to your question is “they’re not different.” Or rather they’re two aspects of the same thing.
A changing electrical field produces a magnetic field, and a changing magnetic field produces an electrical field. So if things line up right, you get a changing electrical field that produces a changing magnetic field that then produces a changing electrical field… the two fields basically generate each other, and you get a wave.
There are other interesting properties like how the fields always produce each other orthogonally (at right angles) and how there are no magnetic monopoles (you can’t have a lone north pole or south pole, they’re always paired) but there are electric ones.
As for “why” you can get into the particles that mediate the fundamental forces, but anything beyond that is less physics and more philosophy.
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