\\ {{ latex:tikz:solenoid.png ? 2000 }} \\ % Author: Izaak Neutelings (June 2018) \documentclass[border=3pt,tikz]{standalone} \usepackage{tikz} \tikzset{>=latex} % for LaTeX arrow head \usetikzlibrary{calc} \usetikzlibrary{patterns,snakes} \begin{document} \begin{tikzpicture}[scale=1] \def\R{0.8} \def\A{11} % amplitude \def\s{6} % coil segment length \def\L{8} % coil length \def\a{0.5} % coil segment aspect \def\dy{0.9} % vertical shift \def\dx{0.2} % horizontal shift \draw[snake=coil,thick,segment amplitude=2*\A,segment length=\s,segment aspect=\a] (0,0) -- (\L,0); \draw[<->,shorten >=5] (0,\dy) -- (\L,\dy) node[midway,above] {length $\ell$}; \draw[snake=brace,mirror snake,segment amplitude=3] (0,-\dy) -- (\L,-\dy) node[midway,below=1] {$N$ turns}; \draw[-,thick] (\L,0) -- (1.01*\L,0); % coil extension \draw[<->] (-\dx,0) -- (-\dx,\R) node[midway,left=6] {$R$}; \end{tikzpicture} \end{document}