Solve the following problem:
a. For the three-wire system of Fig., properly connect a second wattmeter so that the two will measure the total power delivered to the load.
b. If one wattmeter has a reading of 200 W and the other a reading of 85 W, what is the total dissipation in watts if the total power factor is 0.8 leading?
c. Repeat part (b) if the total power factor is 0.2 lagging and Pl = 100 W.
