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A4. (a) Define the complex impedance of the resistive, R, capacitative, C, and inductive, L,
components of a circuit driven by an AC source varying as V(t) = Voet. Explain why
the impedances are complex. What are their phases relative to the driver?
(b) Write down the total complex impedance of R and C when connected in series, and for
the same R and C when connected in parallel. Give your answers in terms of R and C.

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