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    Complex Power of a Load

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    Calculate S, the complex power of a load (in rectangular form), given the following data:
    Vrms = 220 V, P = 1kW, magnitude of Z = 40 ohm (inductive).

    a. S = 2000 - j150.3 VA
    b. S = 1000 + j681.2 VA
    c. S = 2000 - j681.2 VA
    d. S = 1000 - j150.3 VA

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    Solution Preview

    The answer to this question is given in the attached Word file. Thank you for using BrainMass.


    From the load prospective, we have the following relationship between voltage, current, and load impedance:

    From the question, we know Vrms = 220V
    |Z| = 40 Ohm ...

    Solution Summary

    This solution contains contains step-by-step calculations to determine the complex power of the load using the concepts of apparent power and complex power.