Physics · AC Circuits
Which of the following statements is/are CORRECT regarding the advantages of a three-phase polyphase electrical system? A. The total power in a balanced 3-phase system is constant at every instant of time. B. It requires less conductor material compared to a single-phase system for transmitting the same amount of power. C. It produces higher output and efficiency for a given frame size. D. Three-phase motors are self-starting and do not require external starting mechanisms.
- 1A, B, C, and D✓
- 2A, B, and D
- 3A, C, and D
- 4A, B and C
Correct answer
A, B, C, and D
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