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electrical engineering three phase systems in power applications
1. Compare the total copper cross sections in terms of current-carrying capacity for a single-phase and a three-phase 120 V system with effective load resistance of 15 .
(A): single-phase 16 A; three-phase 0 A
(B): single-phase 16 A; three-phase 8 A
(C): single-phase 32 A; three-phase 16 A
(D): single-phase 8 A; three-phase 4 A
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