I understand that coils have properties over a single wire in producing a magnetic field. But I'm a hobbyist not an expert. I know electricity was discovered from a wire carrying a charge when presented in a magnetic field. So I wonder if that is why we use wire and wire coils to pass through the magnetic field. (Because that's what was used at the time of discovery.)
Solid copper presents a massive magnetic field, as seen when dropping a strong magnet through the inside of a length of copper pipe.
Has anyone tried using solid copper plates to generate magnetic fields instead of coiled wire? Would that work or not? Why?