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Joseph Henry Research Paper

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Inventor Joseph Henry an American Electromagnetism pioneer is the master mind behind the relay component. Henry used a small electromagnet to switch a larger one on and off. My research also revealed that he speculated that he could use these relays to control electrical machines over very long distances. Simultaneously he was working on the electric telegraph the forerunner of what we know today as the telephone. My understanding of the function of a relay: A small current hit a set of contacts that flows through a circuit and activate an electromagnet generating a magnetic field that attracts a contact and activates a second circuit. When the power is switched off, a spring runs the contact back up to its original position switching the

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