एक अल्टरनेटर में, मुख्य चुंबकीय क्षेत्र आमतौर पर किसके द्वारा उत्पन्न होता है?

In a three-phase alternator, the factor that accounts for the reduction in induced EMF because the coils within a phase group are spread across several slots per pole is known as the ________.

Which factor is least significant in determining the rating of a distribution transformer?