For visual demonstration of electric fields. A transparent plastic base supports a glass dish 90 mm diameter and two 4 mm socket terminals mounted on two insulated pillars with two wire point electrodes and two T-shaped electrodes.

For investigating the relationship between the electrical quantities charge, voltage and capacitance, as well as for measuring the absolute permittivity and dielectric constant of various materials. Equipped with a fine control mechanism for precise adjustment of the distance between the plates.

Items Required But Not Included With The Product:

• Electrometer Amplifier
• Digital Multimeter (PH64505)
• Power supply (PH61015)
• Flexible plug leads (50 cm), black
• Flexible plug leads (50 cm), red
• Flexible plug leads (100 cm), yellow

Two small plated brass spheres mounted on jointed arms, with insulated handle.

In rectangular cast metal case, with removable glass window and fitted with 4 mm earthing socket. A metal disc passes through an insulating polythene bush and ends in a flat support for “gold leaf”. With a transparent scale to show quantum of deflection. With a supply of leaves and instructions for fitting.

Enclosed to prevent air currents from affecting the deflection of leaves. Each leaf is suspended from two small hooks. The leaves pivot, rather than bend when charged. Front and rear side of box is made of square glass to allow visibility. Supplied with a booklet of 6 leaves.