Hi I’ve got this question. Doing RLC series circuit. I’ve got a formula sheet that says for capacitor reactance I use formula xc=10^6/2pieFC) when capacitance is in microfarads. The problem I have is the working out in the answers is a different formula and I have no idea where they get 6.28 from? Can someone please explain why I cant use the formula I’m using and what I should do. View attachment IMG_9074.jpegView attachment IMG_9069.jpegView attachment IMG_9072.jpeg