A 20 Ω resistor is connected in parallel with a 5 mH inductor. Thisparallel combination is connected in series with a 5 Ω resistor and a25 μF capacitor.1. Calculate the impedance of this interconnection if the frequency is2 krad/s.2. Repeat (a) for a frequency of 8 krad/s.3. At what finite frequency does the impedance of the interconnectionbecome purely resistive?4. What is the impedance at the frequency found in (c)?

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