GATE Electrical Engineering (EE) 2015 Shift 2 Solved Paper

A 3 – bus power system network consists of 3 transmission lines. The bus admittance matrix of the uncompensated system is
$\left[\begin{array}{ccc}-\mathit{j}6& \mathit{j}3& \mathit{j}4\\ \mathit{j}3& -\mathit{j}7& \mathit{j}5\\ \mathit{j}4& \mathit{j}5& -\mathit{j}8\\ \end{array}\right]\mathit{P}\mathit{u}$
If the shunt capacitance of all transmission lines is 50% compensated, the imaginary part of the 3^rd row 3^rd column element (in pu) of the bus admittance matrix after compensation is