GATE Electrical Engineering (EE) 2016 Shift 1 Solved Paper

A three-phase, $50\mathit{H}\mathit{z}$ salient-pole synchronous motor has a per-phase direct-axis reactance $\left({\mathit{X}}_{\mathit{d}}\right)$ of $0.8\mathit{p}\mathit{u}$  and a per-phase quadrature-axis reactance $\left({\mathit{X}}_{\mathit{q}}\right)$ of $0.6\mathit{p}\mathit{u}$. Resistance of the machine is negligible. It is drawing full-load current at 0.8 pf (leading). When the terminal voltage is $1\mathit{p}\mathit{u}$, per-phase induced voltage, in $\mathit{p}\mathit{u}$, is _________.