\begin{figure}[H]
    \centering
    \begin{circuitikz}
    \draw
    
   (1,2) to node[ground]{} (1,2)
   (1,4) to [american voltage source, v=$v_0$] (1,2)
 % (1,4) to [short, -] (1,3)
    (1,4) to [european resistor, a=$R_k$] (3.3,4)
    (3.3,4) to [short, -*,l=$v_1$] (3.5,4)
    
    (3.5,4) to [amp, a=Buffer] (6,4)    
    
    (6,4) to [short, -*,l=$v_2$] (6.2,4)
    (6.2,4) to [short, -] (8,4)
    (8,4) to [european resistor, a=$R_L$] (8,2)
    (8,2) to node[ground]{} (8,2)
    
    ;
    \draw[dashed] 
    (0,1) to [short, -] (3,1)
    (3,1) to [short, -] (3,5)
    (3,5) to [short, -, l=Kilde] (0,5)
    (0,5) to [short, -,] (0,1)
    
    (6.5,1) to [short, -] (9.5,1)
    (9.5,1) to [short, -] (9.5,5)
    (9.5,5) to [short, -, l=Last] (6.5,5)
    (6.5,5) to [short, -] (6.5,1)

    ;
    \end{circuitikz}
    \caption{Kretstopologi der en buffer er tatt i bruk.}
    \label{fig:full}
\end{figure}