An alternating source with a variable frequency, a capacitor with capacitance C, and a resistor with resistance R are connected in series. The figure gives the impedance Z of the circuit versus the driving angular frequency ωd; the curve reaches an asymptote of 645 Ω, and the horizontal scale is set by ωds = 350 rad/s. The figure also gives the reactance XC for the capacitor versus ωd. What are (a) R and (b) C? Assume Zs = 516 Ω.

An alternating source with a variable frequency, a capacitor with capacitance C, and a resistor with resistance R are connected in series. The figure gives the impedance Z of the circuit versus the driving angular frequency ωd; the curve reaches an asymptote of 645 Ω, and the horizontal scale is set by ωds = 350 rad/s. The figure also gives the reactance XC for the capacitor versus ωd. What are (a) R and (b) C? Assume Zs = 516 Ω.

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