Atkinson, Philip. [from old catalog] · New York, The Century co. · leaf 164
f thedynamo is rotated by mechanical power in opposition tothe electromagnetic force, an electric current is gene-rated, which traverses the motor and causes its armature 140 ELECTRIC MOTORS. 141 to rotate in obedience to the electromagnetic force, re-producing the mechanical power, which can be… … Dynamo. Fig. 64. Motor. Counter Electric Pressure.—But the rotation of themotors armature, in this way, generates electric pressure,the same as if it were rotated by mechanical power, andthis pressure opposes that of the dynamo. Hence, if bothmachines were of the same size, this counter…
Electricity
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