1. The problem statement, all variables and given/known data In an L-R-C series circuit, the rms voltage across the resistor is 32.0 , across the capacitor it is 90.1 and across the inductor it is 51.5 . What is the rms voltage of the source? 2. Relevant equations Well there are lots of equations V_rms =V/sqrt(2) V_R=IR V_L=IX_L(I[tex]\omega[/tex]L) V_C=IX_c(I/([tex]\omega[/tex]C) 3. The attempt at a solution So what i did was convert all the values from rms into their amplitude voltages and summed them. Then took the resultant rms of that answer. This is not correct however. I was using kirchoffs rules of the sum of voltages around loop =0. Does this principle hold true in this situation?