7. An oscillating circuit comprises a series connected capacitor and inductor, the resistance R is equal to 80 ohms, the inductance L = 5 mH. The resonant frequency of the circuit νrez = 5 kHz. Determine the impedance Z for the AC circuit, if the frequency ν = 50 Hz.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)