Question

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

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