[SOLVED] Finding RLC from Freq and Impediance (AC Ckt) 1. The problem statement, all variables and given/known data 1. Determine the values of R, L and C in an AC circuit to satisfy the following criteria: (i) the impedance at resonance is 5 k Ohms (ii) the resonant frequency is 60 Hz (USA standard) (iii) the voltage lags the current in the circuit by 2.8 degrees at a frequency of 50 Hz (the European standard). (iv) Draw the phasor diagram for the impedance at 50 Hz. 2. Find the impedance and phase angle for this circuit at f = 1 kHz. Then draw the impedance diagram at this frequency. 2. Relevant equations R: Xr=R L: Xl=wL C:Xc=1/wC 3. The attempt at a solution Well i know that Frequency = w/2(pi) so i can plug in 60hz=w/2(pi) to get a angular frequency=376.99 rad/s and since w=2(pi)/T i can get a time of .0166seconds... but i get stuck after that point, cause i can't find equations that relate any more variables without the others.