A balanced, three-phase, four-wire, 440V, CBA source is connected to an unbalanced, three- phase, four-wire, wye-connected load (neutral connected): ZAO =j50, Z80 = -160, Zco= 80. Using VCA as reference, determine the complete set of available supply voltages and calculate the: a. magnitude and direction of the phase and line voltages b. magnitude and direction of the phase and line currents magnitude and direction of the neutral current c. (assuming the supply neutral (N) is connected to the load neutral (0)] d. total complex apparent power (polar and rectangular) e. magnitude and direction of the three phase voltages and the neutral offset voltage (Vos) if the neutral becomes disconnected f. total complex apparent power (polar and rectangular) if the neutral becomes disconnected g. What significant changes occurred when the neutral became disconnected?