एक DC मशीन के आर्मेचर कोर को मुख्य रूप से किसे कम करने के लिए लैमिनेट (पटलित) किया जाता 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?