Electromagnets are a part of our everyday lives.
They are useful because they act like magnets when the current is on and lose their magnetism when the current is off. Some electromagnets we use everyday are in school bells, telephones, automatic doors and tape recorders. Scientists at Jefferson Lab use electromagnets to focus and steer the electron beam around the accelerator and to help guide and measure the charged particles resulting from their experiments. The Wire 1. Strip a few centimeters of insulation off of each end of the wire.