\documentclass[crop,border=5,tikz,convert={outext=.svg,command=\unexpanded{pdf2svg
    \infile\space\outfile}},multi=false]{standalone}
\usetikzlibrary{math,calc,through,shapes,patterns,decorations.pathmorphing}

\begin{document}
\begin{tikzpicture}[>=latex,scale=1]
  \shade[ball color=red!80] (0,0) circle (7mm) node(Q) {$+Q$};

  \coordinate (q1) at (30:5);
  \draw[ultra thick,->,black!50!blue] (q1)--($ (Q)!1.1875!(q1) $)
  node[below] {$\vec{E}$};
  \draw[thick,->,black!50!green] (q1)--($ (q1)!0.4!(Q) $)
  node[left] {$\vec{F}_{\mathrm{el}}$};
  \shade[ball color=blue!80] (q1) circle (2mm)
  node[anchor=south east,inner sep=4] {$q_1$};

  \coordinate (q2) at (-20:2.5);
  \draw[ultra thick,->,black!50!blue] (q2)--($ (Q)!2.5!(q2) $)
  node[above] {$\vec{E}$};
  \draw[thick,->,black!50!green] (q2)--($ (Q)!1.5!(q2) $)
  node[above] {$\vec{F}_{\mathrm{el}}$};
  \shade[ball color=red!80] (-20:2.5) circle (1mm)
  node[anchor=north east,inner sep=2] {$q_2$};

  \node(E)[black!50!blue] at (4,0.4) {\LARGE $\vec{E}:=\frac{\vec{F}_{\mathrm{el}}}{q}$};
  \node(Qq) at(0,-2){\small $|q_1|>|q_2|$};
\end{tikzpicture}
\end{document}