$1)(10$ points$)$ Please appropriately respond to the following true$/$false questions:

$-$ The generator $($supply$)$ side of the $3-$phase power systems is commonly configured in form of a Y $($or star$)$ connection.TrueFalse

$-$ Per$-$unit analysis does change both the magnitude and phase angles of the voltage and current phasors.

TrueFalse

$-$ In short circuit tests of a power transformer, we usually apply the rated voltage to the primary side of the transformer while keeping its secondary side shorted.

TrueFalse

$-$ Step$-$up transformers with higher number of coil$-$turns in the primary side are located in power plant stations to increase the voltage level.

TrueFalse

$-$ Per unit system helps eliminate transformers in the circuit analysis.TrueFalse