Precision Variable Capacitor
Used in the following activities:
Pasco product #ES-9043
Description from the Pasco website:
This precision, variable plate Capacitor has two 20 cm diameter, 6 mm thick, solid aluminum plates ground flat to ±0.2 mm. The plates are mounted on acrylic insulators and capacitance is adjustable from 2.3 to 280 pF (plate separation of 1 to 116 mm). The spring-loaded, aluminum extrusion slide mechanism assures that the plates remain parallel as their separation is changed. Plate parallelism is adjustable.