D.C. मशीनों के मामले में, यांत्रिक हानियाँ (mechanical losses, जिसमें घर्षण और विंडेज हानियाँ शामिल हैं) मुख्य रूप से किस पैरामीटर का फलन (function) होती हैं?

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?