Connect the components as mentioned below:
(1-3)(2-4)(5-7)(6-8)(9-12)(10-11)(13-15)(14-16)(17-18)(19-20)

Click on

button to check the connections.

If connected wrong, click on the wrong connection and drag the connection and connect it in right position.
Else if connections are right please click

button to read the values for experiment.

Characteristics of Avalanche Photo Diode (APD)

Instructions