The de voltage generated by solar cells has a value of 110 V, connected such that E= -110 V. The solar cells are capable of producing 1000 W. The source is 120 Vrms, R = 0.5 92, and L is large enough to cause the load current to be essentially dc. (a) Determine a such that 1000 W are supplied by the solar cell array. (b) Determine the power transferred to the ac system and the losses in the resistance. Assume ideal SCRs.