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For a power system network with $n$ nodes, $Z_{33}$ of its bus impedance matrix is $j0.5$ per unit. The voltage at node $3$ is $1.3\angle -10^{\circ}$  per unit. If a capacitor having reactance of $–j3.5$ per unit is now added to the network between node $3$ and the reference node, the current drawn by the capacitor per unit is

  1. $0.325\angle -100^{\circ}$
  2. $0.325\angle 80^{\circ}$
  3. $0.371\angle -100^{\circ}$
  4. $0.433\angle 80^{\circ}$
in Power Systems by (1.5k points)
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