Fotocell i vakuum 3B

Produktbeskrivning

Evacuated photocell for demonstrating the photoelectric effect and showing that the emission of electrons increases with increasing light intensity. Mounted ready for use on a connector base with electrical wiring and shaft.
Cathode: Caesium on oxidized silver
Cathode area: 2.4 cm²
Operating voltage: 50 V, max. 200 V
Working resistance: 1 MO
Dark current: <0.05 µA
Sensitivity: 20 µA/lumen
Photoelectric current density: max. 3.0 µA/cm²