In the circuit shown, a cell with electromotive force (e.m.f.) $E$ and negligible internal resistance is connected. Since the voltmeter has a very high resistance, it measures a potential difference $V_{out}$. Determine the ratio $\dfrac{V_{out}}{E}$?
- A$\frac{1}{6}$
- B$\frac{1}{3}$
- C$\frac{1}{2}$
- D$\frac{2}{3}$