Experiment 5 - The Reverse Voltage of a Diode

A diode in the reverse direction has an infinite resistance. In that case the reverse voltage across the diode should be equal to the total voltage.

For this you adapt the diode circuit by replacing the light bulb with an 1 kΩ resistor. Measure now the reverse voltage across the diode.

Circuit measuring the reverse voltage of a diode. (Enlarge)

Circuit diagram measuring the reverse voltage of a diode.

You actually measure a reverse voltage of 9 volt at the diode and you would measure 0 volt at the resistor.

But does this mean, there is no current flowing in the reverse direction...?