The voltage used for suburban trains in D.C. system is usually
A. 12 V
B. 24 V
C. 220 V
D. 600 to 750 V
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Answer: D
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The voltage used for suburban trains in D.C. system is usually
A. 12 V
B. 24 V
C. 220 V
D. 600 to 750 V
Answer: D
Share your understanding of this question with the correct explanation.