Find armature resistance of excited dc motor

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Reference no: EM13284680

A separately excited DC motor runs at1500 rpm under no load with 200 V applied to the armature.The field voltage is maintain at its rated value. The speed of the motor, when it delivers a torque of 5 Nm ,is 1400 rpm. Rotational loss,armature reaction neglected. Find armature resistance?
For the motor to deliver a torque of 2.5 Nm at1400 rpm.What is armature voltage?

Reference no: EM13284680

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