# How to draw a circular circuit using circuitikz

How can I draw a circuit like this in circuitickz?

• Welcome to SE. "Do my work for me" questions aren't allowed. Please show your attempt and people will suggest modifications to realize this figure. Jul 7 at 12:34
• I am new in this field so didn't know how I should approach. Jul 7 at 14:50
• You got an answer below, but as an example: you could have drawn the straight parts with circuitikz (very easy), and then posted this to ask how to add rounded wires to it (harder to do). Jul 7 at 15:03
• Thanks for making me understand. Jul 9 at 16:57
• Since you have some responses below that seem to answer your question, please consider marking one of them as ‘Accepted’ by clicking on the tickmark below their vote count (see How do you accept an answer?). This shows which answer helped you most, and it assigns reputation points to the author of the answer (and to you!). It's part of this site's idea to identify good questions and answers through upvotes and acceptance of answers. Jul 9 at 17:48

Maybe this can get you started:

\documentclass[border=1mm]{standalone}
\usepackage[nooldvoltagedirection]{circuitikz}

\begin{document}

\begin{circuitikz}[scale=1.2]
\draw
(0,0) to[R=$r$, *-*] (1.8,0) node[anchor=north] {$a$}
(0,0) to[R=$r$] (0,2)
(0,0) to[R=$r$] (-2,0)
(0,0) to[R=$r$] (0,-2);
\draw (0,0) circle (2);
\path (45:2) node[circ] {} node[anchor=south west] {$b$} {};
\end{circuitikz}

\end{document}


You can just draw arbitrary paths with the regular \tikz commands, such as the circle. To place contact nodes, you can use a \path and place a \node with option circ on it (or just use \node[circ] (45:2) {};).