Hello. 1. The problem statement, all variables and given/known data What is the impedance of a circuit in which resistor and inductor are connected in series with each other, and a capacitor is in parallel with them? How should I sum the voltages in order to find the impedance? 2. Relevant equations V = IZ IZ = VR + VC + VL ? 3. The attempt at a solution For a similar question we did, resistor, inductor and capacitor were in series so we simply added all the voltages. I vaguely remember that the same can't be done for the circuit in question, so any help would be appreciated.