Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 40
dings in the same general direction in order that the re-sultant magnetic fields may have the same general direction. 33. The Electric- Motor.—A motor is a machine for converting electricalenergy into mechanical energy. There is essentially no difference between amotor and a dynamo. Any dynamo… … TO-LOAD two machines are mainly mechanical.The fundamental operating principle ofthe motor is as follows: A wire carryinga current placed in a magnetic field willtend to move in a direction at right angles both to the direction of the field and to thedirection of the current. For example, ifthe…
Telegraph, Wireless
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