PASCO ES-9079 BASIC VARIABLE CAPACITOR - Manual

Instruction Sheet
for the PASCO
Model ES-9079
BASIC VARIABLE CAPACITOR
012-07169B
03/00
$1.00
© 1999 PASCO scientific
Introduction
The PASCO experimental Variable Capacitor,
ES-9079, consists of two plastic plates 18 cm in
diameter which can be adjusted to various separations.
The movable plate is mounted on a calibrated slide
which gives the plate separation directly in
centimeters. Binding posts are provided for electrical
connection to each plate. Three plastic spacers are
attached to the fixed plate so that when the movable
plate is made to touch these spacers, the plate
separation is 1 mm.
The plates need to be connected to the electrometer
by a low-capacitance cable. Keep the leads of the
cables as separated as much as possible to
minimize capacitance.
It is extremely important that the plates of the capacitor
remain parallel. It is possible that through mishandling
they will cease to be parallel and adjustment must be
made. On the back side of the moving plate are vertical
& horizontal adjusting screws. By adjusting these two
Basic Variable Capacitor