1. The problem statement, all variables and given/known data Pls see the attachment. 2. Relevant equations 3. The attempt at a solution Obviously I have B and C correct but for a the only thing I can find is tan(phi)=XL-Xc/R This seems to be for a series RLC circuit though and I only have RC. also I know that the current lags the p.d by 900 in an RC circuit but I cant see how I can use this???? any help appreciated.