TryEngineering: Electric Messages: Then and Now Relations
Other Related Resources
TryEngineering: Electric Messages: Then and Now is supplemented by
Mag Lab U: Electromagnetic Induction
relation created by Caroline HallInteractive animation: induce a current by dragging a bar magnet back and forth inside coiled wires. Set the coil to 5, 10, or 15 turns and watch the voltmeter changes. (Includes text tutorial.)
relation created by Caroline Hall
Brief historical account of the 1836 version of the Morse Telegraph Key device with explanation of how it works.
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