An experiment performed to verify Ohm's law using a resistor of resistance $\mathrm{R}=100\mathrm{\Omega },$ a battery of variable potential difference, two galvanometers and two resistances of ${10}^6\mathrm{\Omega }$ and ${10}^{-3}\mathrm{\Omega }$. Draw the circuit diagram and indicate clearly the positions of ammeter and voltmeter.