12 Circuit II

For the system represented in Fig. 12.32, the ohmic losses in the neutral wire are so small they can be neglected and it can be adequately modeled as a short circuit.(a) Calculate the power lost in the two lines as a result of their nonzero resistance. (b) Compute the average power delivered to the load. (c) Determine the powerfactor of the total load.

Here The link to the figure
http://tinypic.com/r/2rylw6x/6