1. The problem statement, all variables and given/known data A 29kΩ resistor is in series with a 62mH inductor and an ac source. Calculate the impedance of the circuit if the source frequency is 80Hz . 2. Relevant equations XL = ωL Z = [(R^2 + (XL - XC)^2)] ^ 1/2 3. The attempt at a solution R = 29,000 Ω XL = 0.062 H (2∏ * 80 Hz) XL = 31.16 Ω I'm having difficulty figuring out how to find XC. XC = 1 / ωC but what is "C?"