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Q. A dc series motor, with a design constant Ka = 40 and flux per pole of 46.15 mWb, operates at 200 V while taking a current of 325 A. The total series-field and armature-circuit resistances are 25 and 50 m, respectively. The core loss is 220 W; friction and windage loss is 40W. Determine:
(a) The electromagnetic torque developed.(b) The motor speed.(c) The mechanical power output.(d) The motor efficiency.
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