Send electricity through a wire and you get a magnetic field that drags or pushes on any outside magnetic field.
(you; get; a magnetic field that drags or pushes on any outside magnetic field) (a magnetic field; drags; ) (a magnetic field; pushes; on any outside magnetic field)
you a magnetic field a magnetic field
get drags pushes
a magnetic field that drags or pushes on any outside magnetic field
on any outside magnetic field