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As compared to the use of a single series dc motor for electric traction for a given starting time t, the series parallel control using two similar motors with time t/2 for each series and parallel operation would give a saving in starting energy of | |
A. | 1 [Wrong Answer] |
B. | 0.5 [Wrong Answer] |
C. | 0.25 [Correct Answer] |
D. | zero. [Wrong Answer] |