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Joseph Henry, a professor at Albany Academy in New York was
independently making the same observations at the same time as Faraday. When Henry got news of Faraday`s discoveries, he made no effort to claim credit for his own work but often referred to Faraday`s discovery. It was the change in the magnetic field which induced electricity without a direct connection, not the value of the steady magnetic field itself. Slight correction: it is the change in the magnetic flux that gives induced EMF. You can get an induced current from a constant magnetic field if the circuit loop moves in or out of the field, changing the flux throught the loop. Tor N4OGW |
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