Question: A regular household system of a single-phase three-wire circuit allows the operation of both 120-V and 240-V, 60-Hz appliances. The household circuit is modeled as

A regular household system of a single-phase three-wire circuit allows the operation of both 120-V and 240-V, 60-Hz appliances. The household circuit is modeled as shown in Fig. 11.96. Calculate:
(a) The currents I1, I2, and In
(b) The total complex power supplied
(c) The overall power factor of the circuit

120V + 100 Lamp 30 > Kitchen ramp ' 100 Refrigerator 1200v I 15 I

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