Exercise $4$

Construct a phasor diagram showing $IR,IL,$ and $IC$ for the circuit of Fig. $4$ below.

Combining these currents, determine the angle by which Is leads IR$,$ IC$,$ and Ix$.$

Exercise $5$

For the circuit of Fig. $5,$ find both the phase and line currents, and the phase and line voltages throughout the circuit; then calculate the total power dissipated in the load.

Exercise $6$

A balanced, three$-$wire, $Y-$connected, three$-$phase load has a phase voltage of $240$ V $,$ a line current of $5$A and a lagging power factor of $0\mathrm{.}966.$ Draw the complete phasor diagram.

Good Luck