Electroscope
Product Code : SCL-CL-11872
Electroscope (SKU SCL-CL-11872) is a pointer-type instrument that detects electric charge: when a charged object touches or nears its top disc, the aluminium arrow inside the case swings away from its support. It is housed in a sheet metal case with glass viewing panels and an earthing terminal, and suits Class 8–12 and college electrostatics. Schools, colleges, training institutes, distributors and tender contractors can obtain it through Science Lab Supplies in Ambala, India.
Specifications
Case, panels, electrode and indicator of this sheet-metal electroscope each have a row below. In short, a rectangular metal case stands on an insulated base with removable sliding glass panels, one clear and one ground; a removable disc electrode passes through an insulating bush, and a plated blade carries the aluminium arrow.
| Specification | Value |
|---|---|
| SKU | SCL-CL-11872 |
| Case | Rectangular sheet metal |
| Base | Insulated base |
| Front panel | Removable sliding glass; slides upward for inserting ionising material into the chamber |
| Back panel | Removable sliding glass |
| Glass types | One clear for observation, one ground glass for improved visibility |
| Electrode | Removable disc electrode at the top |
| Electrode insulation | Insulated moulded plastic bush to prevent charge leakage |
| Indicator | Aluminium arrow |
| Arrow mounting | Plated metal blade beneath the electrode |
| Earthing | Side terminal |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Electroscope
The electroscope makes invisible charge visible, so it can be used throughout school and college electrostatics practicals: detecting charge, telling its sign, and showing induction and leakage. It supports NCERT Class 8 science, the electric charges chapter of Class 12 physics and first-year B.Sc. electricity labs.
- Class 8 science: detecting charge on rubbed rods, or on a Balls Styrofoam sphere hung on thread.
- Class 12 physics: charging by conduction and by induction, then earthing via the side terminal.
- Comparing charges: a known charge first, then observing whether the arrow rises further or falls, alongside the spheres and electrodes of an Electrostatics Apparatus Set.
- Ionisation demonstrations: the front window slides upward so ionising material can be placed in the chamber to show the charge leaking away.
Any ionising source is a separate item; handle it only under teacher supervision and your institution's radiation-safety rules.
Standard Scope of Supply
The Electroscope is supplied as a single unit: case on insulated base, sliding clear and ground glass panels, disc electrode with insulating bush, blade and aluminium arrow, and earthing terminal. Charging rods and any ionising source are separate items that can be added to the quotation on request.
Packing, MOQ and Lead Time
Quotations are available for one demonstration instrument or a set for student benches, each giving packing, delivery time and price for that number. Charging rods and other school chemistry lab equipment in India can be priced on the same quotation, so the electrostatics bench is delivered together.
Holding an Importer-Exporter Code, Science Lab Supplies can ship to buyers in South Africa, Qatar, Sri Lanka, Vietnam, Malaysia and Peru. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). An electroscope price can be requested by message on the contact page or by listing the instrument in the enquiry cart; for formal purchasing, see the lab tender page.
Frequently Asked Questions
How does this electroscope show charge?
Charge on the top disc spreads to the metal blade and the aluminium arrow. Like charges repel, so the arrow swings away from the blade; the larger the charge, the wider the deflection.
Why are there two different glass panels?
One panel is clear so students can watch the arrow; the other is ground glass, which gives a plain background and improves visibility of the arrow during experiments.
Who supplies the Electroscope?
Science Lab Supplies quotes and dispatches this instrument from Ambala, India. Schools, colleges, training institutes, distributors and tender contractors can ask for a single electroscope or a set for every bench.
How is the electroscope discharged?
Connect the side terminal to earth or touch the disc with a finger. The charge flows away and the arrow falls back to rest, ready for the next reading.
Related Electrostatics Apparatus
An electroscope needs charged objects to test, and it pairs with other electrostatics demonstrations. These items from the Chemistry Lab and Physics Lab ranges supply positive and negative charge, a high-charge source, a second electroscope and a shielding demonstration, and all can go on one enquiry.
- Ebonite Rod — charges by friction with its matching cloth.
- Glass Rod with Rubbing Material — rubbing transfers electrons to the cloth, leaving the rod positive.
- Electrostatics Friction Rods Set — glass and ebonite friction rods with silk and synthetic-fur cloth.
- Apparatus for Distributing Electric Charges — includes a gold leaf electroscope of 200 mm diameter and a friction cloth.
- Demonstration Faraday Rage — mesh cylinder with a flat bottom plate for electrostatic shielding.
- Van De Graaff Generator — belt generator that stores charge in a dome, with a 4 mm socket in the base.
- Discharge Sphere — 10 cm stainless steel sphere on a 41 cm rod for discharging a Van de Graaff.
Browse the full Chemistry Lab range, the Physics Lab range, or all school lab equipment.
Last updated: 9 October 2026
