A DC motor is connected in a series setup. The field resistance is 12 ohms, the armature resistance is 0.5 ohms, and the DC supply voltage is 140 V. When turning at 1000 rpm, the back electromotive force is measured as 65 V. a) Find the overall current in the circuit d) Calculate the power developed by the motor. c) If we let the rotational losses be at 20 Joules per Second, what is the output Torque?

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A DC motor is connected in a series setup. The field resistance is 12 ohms, the armature resistance is 0.5 ohms, and the DC supply voltage is 140 V.
When turning at 1000 rpm, the back electromotive force is measured as 65 V.
a) Find the overall current in the circuit
d) Calculate the power developed by the motor.
c) If we let the rotational losses be at 20 Joules per Second, what is the output Torque?
Transcribed Image Text:A DC motor is connected in a series setup. The field resistance is 12 ohms, the armature resistance is 0.5 ohms, and the DC supply voltage is 140 V. When turning at 1000 rpm, the back electromotive force is measured as 65 V. a) Find the overall current in the circuit d) Calculate the power developed by the motor. c) If we let the rotational losses be at 20 Joules per Second, what is the output Torque?
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