% Author: Dr. Matthias Jung
% Year: 2022
\begin{circuitikz}[american voltages]
        \useasboundingbox (-1,-0.5) rectangle (6.0,3.5);
        
        \tikzset{german switch/.style={
            cute open switch, 
            bipoles/cuteswitch/thickness=0.2,
            bipoles/cuteswitch/shape=circ,
            bipoles/cuteswitch/width=0.7,
        }}

		\draw(0,0)
			to [battery2, invert, v<={U}] ++(0,3)
			to [short] ++(1.0,0)
			to [german switch] ++(1,0)
			to [short] ++(3.0,0)
			to [R, l=R] ++(0,-3)
			to [short] (0,0);
\end{circuitikz}