Electric Field Apparatus
Product Code : JLI-PLE-10765
Quick Answer: The Electric Field Apparatus demonstrates electric fields between electrodes in a clear 90 mm Petri dish on a transparent 140 x 125 mm base, so the pattern can be projected with an overhead projector. Six electrodes are supplied, and it needs a safe, current-limited 0–5 kV EHT supply.
Last updated: 18 October 2026
Key Features
- Clear Petri dish, 90 mm diameter x 12 mm deep.
- Transparent base for overhead projection.
- Thumbscrew beside each terminal for fine electrode adjustment.
- Six electrodes: 2 point source, 2 line source and 2 circular rings of 35 and 70 mm diameter.
- Requires a safe, low-current-limited 0–5 kV EHT supply.
Technical Specifications
| Specification | Value |
|---|---|
| Petri dish | Clear, 90 mm dia. x 12 mm deep |
| Base | Transparent, 140 x 125 mm |
| Electrodes | Six: 2 point source, 2 line source, 2 rings (35 and 70 mm dia.) |
| Adjustment | Thumbscrew at each terminal |
| Supply required | 0–5 kV EHT, low current limited |
How It Is Used
Electrodes are fixed in the dish and connected to the EHT supply, and the field pattern between them can be projected for the whole class to see. Swapping between point, line and ring electrodes shows how the shape of the field changes.
Frequently Asked Questions
What power supply does the Electric Field Apparatus need?
It requires a safe, low current limited 0–5 kV EHT supply.
Which electrodes come with the Electric Field Apparatus?
Six electrodes are supplied: 2 point source, 2 line source and 2 circular rings of 35 and 70 mm diameter.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related electrostatics demonstration items:
- Parallel Plate Capacitor
- Van De Graaff Generator With Accessory Kit
- Electroscope, Gold Leaf
- Van de Graaff Generator Electrical
Export orders for the Electric Field Apparatus are accepted from schools, colleges and distributors in Guyana, Zimbabwe, Libya, Timor-Leste, Brunei and Uganda.
For a quotation on the Electric Field Apparatus, contact JLab India on +91-8569909696.
