The terminal voltage of a motor is 118 V, and the armature current is 38 A. If the armature resistance is 0.3 2, calculate the counter-emf. A shunt motor connected to a 120 V line draws 24 A from the line. The resistance of the field circuit is 100 N, and the armature resis- tance is 0.25 N. Calculate (a) power input to the motor; (b) power lost

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The terminal voltage of a motor is 118 V, and the armature current
is 38 A. If the armature resistance is 0.3 2, calculate the counter-emf.
A shunt motor connected to a 120 V line draws 24 A from the line.
The resistance of the field circuit is 100 N, and the armature resis-
tance is 0.25 N. Calculate (a) power input to the motor; (b) power lost
in the shunt field; (c) power lost in the armature circuit; (d) electrical
power converted to mechanical power.
Transcribed Image Text:The terminal voltage of a motor is 118 V, and the armature current is 38 A. If the armature resistance is 0.3 2, calculate the counter-emf. A shunt motor connected to a 120 V line draws 24 A from the line. The resistance of the field circuit is 100 N, and the armature resis- tance is 0.25 N. Calculate (a) power input to the motor; (b) power lost in the shunt field; (c) power lost in the armature circuit; (d) electrical power converted to mechanical power.
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