\begin{asy}
import Circ;
real u = 1cm;
- TwoTerminal B = source((0,0), DC, 0, "", "$V$");
- TwoTerminal r = resistor(B.end, normal, 0, "", "$r$");
- TwoTerminal R = resistor((0,u), normal, 0, "$R$", "");
- TwoTerminal I = current((r.end.x, R.end.y), 180, "", "$I$");
- wire(B.beg, R.beg, udsq);
- wire(r.end, I.beg, udsq);
- wire(I.end, R.end, nsq);
+ MultiTerminal B = source(type=DC, label="$V$");
+ MultiTerminal r = resistor(B.terminal[1], type=normal, label="$r$");
+ MultiTerminal R = resistor((0,u), type=normal, label="$R$");
+ MultiTerminal I = current((r.terminal[1].x, R.terminal[1].y), dir=180,
+ label=Label("$I$", align=N));
+ wire(B.terminal[0], R.terminal[0], udsq);
+ wire(r.terminal[1], I.terminal[0], udsq);
+ wire(I.terminal[1], R.terminal[1], nsq);
\end{asy}
\end{center}
Make a circuit using a known resistance $R$ to connect the two