Assemble the attached connection diagram! Base current is regulated by covering up the photodiode, which in turn changes the collector current, and as a result the LED either lights up, or not.

Implements required for the experiment

– NPN transistor
– Photodiode (the type used in the experiment: Photodiode, PIN quick reaction, 5mm radiation angle ±20° 400-1100 nm Osram Components SFH 203)
– LED
– 10 kΩ variable resistance (potentiometer 10 kΩ, linear, multiple revolutions)
– 4.5 V power supply source
– Wires