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1. |
A 220V DC series motor is taking a current of 40A. Resistance of armature is 0.5Ω and series field is 0.25Ω. What is the voltage at the brushes? |
A. | 190v |
B. | 210v |
C. | 180v |
D. | none of the above |
Answer» C. 180v | |