Two loads are connected in parallel, L$1$ and L$2.$ Load L$1$ is absorbing $15$ kVA at $0\mathrm{.}6$ pf

lagging. Load L$2$ is absorbing $6$ kVA at $0\mathrm{.}8$ pf leading. The parallel voltage of the loads is

$2000$ Vrms$.$ The parallel arrangement is connected to a source with an internal

impedance of j$1.$ Determine:

a$.$ Complex power for each load $($S$1,$ S$2)$ and for the parallel arrangement $($STotal$).$

b$.$ Real and reactive power absorbed or delivered by each load.

c$.$ Current delivered to the parallel load arrangement.

d$.$ Voltage delivered by the source.