The transparent base (140 x 125mm) allows the pattern to be projected via an overhead projector system.
Alongside each terminal is a thumbscrew system which permits fine adjustment of the electrodes.
For demonstrating electric fields between electrodes.
The apparatus includes a clear Petri dish 90mm dia. x 12mm depth.
Six electrodes are supplied, 2 'point source', 2 'line source' and 2 circular rings of 35 and 70mm dia.
The apparatus requires a safe, low current limited 0-5kV EHT supply.

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Ltekonline are the manufacturers of Electric Field Apparatus Electrostatic Lab used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Physics Lab Experiments for Engineering Teaching Lab in Universities