Question

For a PMDC motor powered by a 12 V DC source, the no-load speed and stall...

For a PMDC motor powered by a 12 V DC source, the no-load speed and stall torque
are 3800 RPM and 30 mNm, respectively. If the motor is running at 2500 RPM, find


a) Shaft torque (Tshaft),
b) Rotor current (Im),
c) Back emf (Eb),
d) Electrical power consumed,
e) Shaft power, and
f) Power loss in rotor coil.

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