1. Determine the magnitude of the impedance in ohms for a 65 mH inductor with excitation at 750 rad/s.
2. Determine the magnitude of the impedance in ohms for a 80 mH inductor in series with a 80 ohm resistor. The frequency of excitation is 600 Hz.
3. Determine the phase angle of the impedance inradians for a 25 mH inductor in series with a 15 ohm resistor. The frequency of excitation is 850 rad/s.