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Experiment
Nothing happens after the battery has been connected. The needle of the moving-coil instrument is not
moving.
The Schottky diode runs in the reverse current flow direction, and no current can pass. De facto, one flow
direction can be separated off from the other. We call this process rectification. By means of sensitive
measurement methods we can prove that although the diode is in the reverse direction, there is a very
small current flow. This can be used to measure the ambient temperature, for example.
The circuit diagram for this experiment is shown in Chap. 3, Fig. 3.3.
28
Components required:
2 x 10 kΩ resistors,
1 x BAT85 Schottky
diode, 1 x moving-
coil instrument,
1 x breadboard, 1 x 9V
battery with clip con-
nector
Fig. 2.3a: Diode in reverse
direction
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