Calculate lost torque-opper loss and efficiency

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A 100V dc series motor has an armature resistance of 0.2 ohm and field resistance of 0.25 ohm. The motor runs at a speed of 600 rev/min when the shaft torque is 27.14 Nm. Friction and windage losses at this speed are 300W. Calculate lost torque, copper loss and efficiency.

Reference no: EM13248264

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