Hi everyone here is the where I would like the text to go:

[![enter image description here](https://i.stack.imgur.com/wPsBI.png)](https://i.stack.imgur.com/wPsBI.png)

Here is the code: 

```
\documentclass{article}
\usepackage[utf8]{inputenc} 
\usepackage{tikz}  
\usepackage{mathtools}  
\usepackage[american]{circuitikz} 
\usepackage{enumitem}
\usetikzlibrary{shapes,arrows}  
\renewcommand*\contentsname{Contenido} 
\begin{document} 

\begin{figure} [ht]
\begin{circuitikz}  
 \fill[red!20] (3.1,1.3) rectangle (2.9,2.7); 

\draw (0,-1.5) 
to [V, v=$V_i$,invert] (0,3)
to [short] (3,3)  
(3,3) to [short] (6,3)  
to [battery, label = 1V] (6,1)  
(3,1) to [R=$1k\Omega $,v = $V_o$,*-*] (6,1)  
(6,1) node[label={[font=\footnotesize]right:\textbf{B}}] {} to [R=$2k\Omega$] (6,-1.5) 
(3,1) to [R=$2k\Omega$] (3,-1.5) 
(0,-1.5) to [short] (3,-1.5) 
(3,-1.5) to [short] (6,-1.5) 
(3,-1.5) -- (3,-1.7) node[ground]{} 
;
\draw 
(3,3) to [short, -o] (3,2.5)  
(3,1)  node[label={[font=\footnotesize]left:\textbf{A}}] {} to [short,-o]  (3,1.5) 
(3,2.5) to [open, v = $V_\gamma$] (3,1.5) 
; 

\end{circuitikz}
\end{figure} 
\end{document}

```

I'm looking of it to look like this: 

[![enter image description here](https://i.stack.imgur.com/OBZVH.png)](https://i.stack.imgur.com/OBZVH.png)

I have the circuit inside an image because I thought it might help. 

Appreciate the help!