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A 200 V dc shunt motor delivers an output of 17 kW with an input of 20 kW. The field winding resistance is 50 Ω and armature resistance is 0.04 Ω. Maximum efficiency will be obtained when the total armature copper losses are equal to | |
A. | 2,632 W [Correct Answer] |
B. | 3,000 W [Wrong Answer] |
C. | 3,680 W [Wrong Answer] |
D. | 5,232 W [Wrong Answer] |