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\documentclass[tikz]{standalone}
\usepackage{amsmath}
\usepackage{times}
\usepackage{txfonts}
\usetikzlibrary{arrows}
\usetikzlibrary{intersections}
\usetikzlibrary{math}
\usetikzlibrary{positioning}
\usetikzlibrary{arrows.meta}
\usetikzlibrary{shapes.misc}
\usetikzlibrary{calc}
\begin{document}
\begin{tikzpicture}[
>=latex,
node distance = 2mm,
charge/.style = {
circle, draw = black, thick,
minimum size = 5mm
},
positive/.style = { fill = red!50 },
negative/.style = { fill = blue!50 },
]
\node[charge, positive, yshift= 2.5mm] (C1) at ( 60:1.5cm) {};
\node[charge, negative, yshift= 2.5mm] (C2) at (120:1.5cm) {};
\node[charge, positive, xshift= 2.5mm] (C3) at (180:1.5cm) {};
\node[charge, negative, yshift=-2.5mm] (C4) at (240:1.5cm) {};
\node[charge, positive, yshift=-2.5mm] (C5) at (300:1.5cm) {};
\node[charge, negative, xshift=-2.5mm] (C6) at (360:1.5cm) {};
\draw[black] (C1) to (C2) to (C3) to (C4) to (C5) to (C6) to (C1);
% \draw[gray, dashed] (C2) to (C4) to (C6) to (C2);
\draw[orange, very thick, <-] (C6) to ++(.7,0);
\draw[orange, very thick, <-] (C3) to ++(-.7,0);
\node[black] (E) {\(\vec{E}_p\)};
\begin{scope}[node distance = .5mm]
\node[blue!50, right = of E] {\(-\)};
\node[red!50, left = of E] {\(+\)};
\end{scope}
% \draw[gray, thick, dotted] (E) to ++(0,2);
% \draw[gray, thick, dotted] (E) to ++(0,-2);
\end{tikzpicture}
\end{document}
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