A dc series motor is running at rated speed without any additional resistance in series. If an additional resistance is placed in series, the speed of motor
A. increases.
B. decreases.
C. remains unchanged.
D. oscillates around the rated speed.
Answer:B
A dc series motor is running at rated speed without any additional resistance in series. If an additional resistance is placed in series, the speed of motor
A. increases. B. decreases. C. remains unchanged. D. oscillates around the rated speed.