E-Field Apparatus. This apparatus allows visualisation of electric fields between various electrode configurations, in similar way to how iron filings allow visualisation of magnetic fields. It is constructed from transparent acrylic, which allows it to be placed on an overhead projector for class demonstrations but can also be used on white surface for use with visualisers or for direct observation by smaller groups. In order to create electric fields large enough to influence the particles, high voltage, low current 2-5kV EHT power supply is required. Apparatus includes electrodes, clear acrylic base with 4mm sockets to clamp electrodes and connect power supply, petri dishes and instructions. Also requires liquid paraffin (PA4452 or PA4454 and semolina (not supplied). Base dimensions (L W H): 150 150 65 mm.
