$($e$)$ What ls te new

$5-8.$ A $4\mathrm{.}12-$kV$,60-$Hz$,3000-$hp$,0\mathrm{.}8-$PF$-$leading, A$-$connected, three$-$phase synchro$-$

nous motor has a synchronous reactance of $1\mathrm{.}1$ per unit and an armature resistance

of $0\mathrm{.}1$ per unit. If this motor is running at rated voltage with a line current of $300$ A

at $0\mathrm{.}85$ PF leading, what is the internal generated voltage per phase inside this mo$-$

tor? What is the torque angle $8?$