1. The problem statement, all variables and given/known data Using circuit analysis calculate the inductance (L) within an electrical 50hz AC circuit containing a 12Ω resistor and inductive reactance of 5Ω which are in series. 2. Relevant equations Inductive reactance: XL = 2∏FL Therefore inductance: L = XL\2∏F 3. The attempt at a solution Using my calculator I achieve the following: L = (XL)\(2)(∏)(F) L = 5Ω \ (2∏) x (50) L = 5Ω \ 314.159 L = 0.0159 H L = 15.9mH I believe this value is correct.