Question $2$:

A three$-$phase bridge rectifier has a purely resistive load of $R.$ The rectifier delivers $I_{dc}=60A$ at an output voltage of $V_{dc}=280\mathrm{.}7V$ and the source frequency is $60$ Hz $.$

$($a$)$ Draw the waveforms of the output voltage, output current, and $D_1$ current.

$($b$)$ Determine the efficiency, the FF$,$ the RF$,$ the TUF, and the peak current through a diode.