D.E.V.I.C.E. is an encyclopedia of terms used by manufacturers of test and measurement equipment. T&M Atlantic created this service to better explain the functionality of instruments it offers, and to highlight the latest developments in the world of measurement equipment. We are using such tools as animation to bring words and pictures to life and to create not just an understanding but also an appreciation for technology that goes into the design of every instrument.
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The first electromagnet was created by William Sturgeon who demonstrated it to the Society of Arts on May 23, 1825. It was a horseshoe-shaped lacquered iron rod 30 cm long and 1.3 cm in diameter, on top it was covered with a single layer of insulated copper wire.
The electromagnet was supplied from a galvanic battery (voltaic pile) and could hold 3600 g and significantly surpassed natural magnets of the same mass. It was a brilliant achievement for those times.