एक DC जनरेटर में आर्मेचर रिएक्शन (armature reaction) मुख्य रूप से निम्नलिखित में से किस पैरामीटर को प्रभावित करता 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?