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• 13:16, 20 April 2022 Physdemo talk contribs created page Jumping Wire (Created page with "{{NewDemo|subject=Electricity and Magnetism|topic=Magnetic Fields and Forces|file1=Jumping Wire.gif|file2=jumping speaker.gif}} String a wire between the poles of the large magnet and connect the ends to a power supply. Turn on a small current through the wire and it will jump out. Reverse the polarity and the wire will jump into the magnet. Also available as a variation on this concept is the "jumping speaker" demo. There are a couple speakers in drawer 43 that look li...")