One, either wind more wire around the coil around the material that you are using to make the electromagnet or increase the current.
(the material; are using; to make the electromagnet or increase the current) Context(the material are using,List([50, 81))):(you; to make; the electromagnet) Context(the material are using,List([50, 81))):(you; to increase; the current)
the material are using,List([50, 81)) the material are using,List([50, 81))
the material you you
are using to make to increase
to make the electromagnet or increase the current
the electromagnet
the current