back to the top Experiment -- Make an Electromagnet Materials 3 inch iron nail 1.5 volt batteries battery holders (optional) 1.5 meters of insulated wire (18 gauge ) paper clips, brads, or other small metal objects Background for Instructors An electromagnet forms when electric current flows through a wire and produces a magnetic field around the wire.
(other small metal objects; Background; for Instructors) (electric current; flows; through a wire) (electric current; produces; a magnetic field; L:around the wire)
other small metal objects electric current electric current
Background flows produces
for Instructors
through a wire
a magnetic field L:around the wire