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    AC Circuits

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    A) Use the complex form of Ohm's law to show graphically that the voltage across an inductance L leads the current through the inductor by ninety degrees.

    b) Using the same method, determine the angle by which the voltage across a capacitor leads the current through the capacitor .

    (Complex numbers calculations are called for.)

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    Solution Preview

    Please see attached file for the solution to the given problems.

    a. The impedance of the inductor is equal to:

    = Impedance of the Inductor
    = Angular frequency, also equal to , where f is frequency
    = ...

    Solution Summary

    Complex forms of Ohm's law for alternating current is examined.