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The armature winding of a 2-pole, 3-phase alternator for each phase is distributed in a number of slots per phase. The rrns value of the voltage per phase is less than the rrns value of the voltage per coil multiplied by the number of coils in series because the | |
A. | rms value of the voltage in different coils of the phase is different. [Wrong Answer] |
B. | equal rrns voltages in different coils of the phase has mutual phase difference. [Correct Answer] |
C. | maximum values of the induced voltages in different coils of the phase are different. [Wrong Answer] |
D. | different coils of the phase pass through different saturated regions of the magnetic circuit. [Wrong Answer] |