# Parallel and series RLC circuits

Suppose I have a scheme defined by the following equation:

\begin{align} z = \frac 1 {\frac1 {4R} - j* \frac {1}{wL}} - {j*\frac1{wC}}\end{align}

I need to find a vector diagramm of the scheme, which show the phase angle between current and voltage.

• You are dealing with math here, no electronics. Just derive the expression in z=x+j*y then phase is phase=atan(y/x). – Bip Jun 7 '15 at 22:09
• But what if I need to draw a diagramm? How would it look like? How can it be done without finding the phase angle? – JHFVM Jun 7 '15 at 22:11
• You will have imaginary part on y axis, and real on x axis. The angle is then angle between drawn vertex and x axis. You cannot expect someone to do the homework for you! – Bip Jun 7 '15 at 22:15
• It is not homework. I am trying to connect the dots. – JHFVM Jun 7 '15 at 22:19
• Show the schematic to match the formula. – Andy aka Aug 15 '15 at 22:54