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• ### A DC motor supplied from 12 V draws 1.25 amps and turns at 1200 RPM when...

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A DC permanent magnet motor draws 5A from a 200V DC source, under no-load conditions, and draws 50A from the same source, and has a speed of 2500rpm at full load. Ra = 1.4Ω. Determine: a) the rotation loss* (W) b) the no-load speed (rpm) c) the output torque (Nm) d) the efficiency of the motor at full load. (*Assume the rotational loss is proportional to speed!)

• ### Question 1 0/10 pts A permanent magnet dc motor is to be started from rest. This...

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• ### A 8250 w shunt DC motor has a terminal voltage of 300 V. A field resistance...

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