Quick Answer: The Electric Fields Apparatus shows electric field patterns in a clear plastic dish, in much the same way that iron filings show magnetic fields, using six supplied electrodes.
Last updated: October 2026
Key Features
Clear plastic dish, 90 mm diameter and 12 mm deep
Base 140 x 125 mm with a pair of 4 mm socket terminals/electrode holders
Thumb screw beside each terminal for fine height adjustment of the electrodes
Six electrodes: two point source, two line source and two circular rings
Rings of 35 mm and 70 mm diameter
Patterns can be viewed directly or on an overhead projector
Technical Specifications
Specification
Value
Dish
Clear plastic, 90 mm diameter x 12 mm depth
Base
140 x 125 mm
Terminals
Pair of 4 mm socket terminals
Electrodes
Two point source, two line source, two rings (35 mm and 70 mm)
Power
Requires external power supply
About This Product
The apparatus lets electric field patterns be shown in much the same way that iron filings demonstrate magnetic fields. The patterns can be viewed directly or on an overhead projector. Electrodes sit in the terminal holders, and a thumb screw alongside each one gives fine height adjustment. An external power supply is required.
Frequently Asked Questions
Q1. Which electrodes are supplied? Six electrodes: two 'point source', two 'line source' and two circular rings of 35 mm and 70 mm diameter.
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