1. Sketch the power triangle for Figure 17–9(c). Using this triangle, determine the magnitude of the applied voltage.
2. For Figure 17–10, assume a source of E = 240 volts, P2 = 300 W, and Q2 = 400 VAR (cap.). What is the magnitude of the source current I?
3. What is the power factor of each of the circuits of Figures 17–7, 17–8, and 17–9? Indicate whether they are leading or lagging.
4. Consider the circuit of Figure 17–18(b). If P = 100 kW and QL = 80 kVAR, is the source overloaded, assuming it is capable of handling a 120-kVA load?
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