DC मशीनों पर हॉपकिंसन परीक्षण (Hopkinson's test) करते समय मुख्य आपूर्ति से ली गई शक्ति मुख्य रूप से किस रूप में खपत होती 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?