Quote: if rotate a cooper disk between two magnets, generate a current between axis and rim

Quotation

88. ... the copper disc was adjusted as in fig. 7, the small magnetic poles being about half an inch apart, and the edge of the plate inserted about half their width between them. One of galvanometer wires [touched the] brass axis of the plate, and the other [touched the rim] ... immediately between the magnetic poles. Under these circumstances all was quiescent, and the galvanometer exhibited no effect. But the instant the plate moved, the galvanometer was influenced ... [p. 27] 90. Here therefore was demonstrated the production of a permanent current of electricity by ordinary magnets.   Google-1   Google-2

Published before 1923

Related Topics

Topic: electricity and magnetism (50 items)