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Electroscope, Needle
Electroscope, Needle (Product Code: SLE/PHY/168) is a vane-type electroscope used to show and measure electrostatic charge in physics classrooms and labs. Instead of a fragile leaf, a light-weight metal vane acts as the pointer and swings across a graduated scale when the plate is charged, giving hands-on experience with electrostatic principles. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Key Details
| Parameter | Detail |
|---|---|
| Pointer | Light-weight metal vane (blade) that deflects when the electroscope plate is charged |
| Scale | Graduated scale for measuring the angle of deflection |
| Walls | Sheet metal |
| Base and top | Plastic |
| Front window | Glass; slides up to allow ionising material to be inserted into the chamber |
| Product code | SLE/PHY/168 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Needle Electroscope Used For?
Because the vane's angle can be read off the graduated scale, students can compare charge levels, time how fast charge decays and plot simple graphs — a step up from purely qualitative observation. The robust vane also stands up to repeated student handling better than a leaf, which makes this a practical item of physics lab equipment for schools in India running regular electrostatics practicals.
The sliding glass window gives access to the chamber, so a teacher can place ionising material inside and show that ionised air makes the charged vane fall back as the charge is neutralised. Any radioactive source must be handled under your institution's safety rules; no source is listed as part of this item.
OEM Manufacturer
Jain Scientific Equipments Private Limited (trading as ScienceLab) is the original equipment manufacturer of this needle electroscope. Production takes place at the company's own licensed factory at Saha, Ambala, Haryana, and finished instruments go straight from the factory to schools, colleges, laboratory dealers and importers. If you need a replacement part later, ask us — you will be dealing with the manufacturer, not a middleman. Company background is on our profile page.
Related Physics Lab Equipment
Useful companions for charging the needle electroscope and comparing results:
- Electroscope, Gold Leaf — leaf-type instrument with its own deflection scale and 4 mm earthing terminal.
- Electrostatic Investigation — kit of friction rods, fabrics and a pith ball for producing charge.
- Friction Rod, Glass/Brass, 300mm — rod for charging the plate by friction.
- Van de Graaff Generator — stronger charge source for large vane deflections.
For the complete range, visit Physics Lab Equipment.
Frequently Asked Questions
How does the Electroscope, Needle indicate charge?
The Electroscope, Needle indicates charge with a light-weight metal vane that deflects when the electroscope plate is charged. The vane acts as a pointer over a graduated scale, so the angle of deflection can be read and compared.
What is the Electroscope, Needle made of?
The Electroscope, Needle has sheet metal walls attached to a plastic base and top, a glass front window that slides up, and a light-weight metal vane pointer with a graduated scale for reading the deflection angle.
What is the sliding window on the Electroscope, Needle for?
The front glass window of the Electroscope, Needle slides up so ionising material can be placed in the chamber to demonstrate how ionised air discharges the vane. No ionising source is listed with the item, so discuss requirements with us.
Is the Electroscope, Needle suitable for student practicals?
Yes, the Electroscope, Needle is designed for hands-on experience with electrostatic principles in physics classrooms and labs, and its graduated scale suits practicals where students record the angle of deflection rather than simply observing movement.
Who manufactures the Electroscope, Needle?
Jain Scientific Equipments Pvt Ltd (ScienceLab) manufactures the Electroscope, Needle as an OEM at its own factory in Ambala, Haryana, India. Quotations, repeat orders and questions about spare parts are handled directly by the company.
Can I get a calibration certificate for the Electroscope, Needle?
A calibration certificate is not listed for the Electroscope, Needle, as its scale serves comparative classroom readings. If your purchase terms need one, please discuss it with us on the contact page before placing the order.
Can the Electroscope, Needle be supplied in bulk or for export?
Yes, the Electroscope, Needle can be supplied in bulk to schools, colleges and distributors in India and international markets. Share the quantity, delivery destination and any accessories you need through the contact page to receive a quotation.
Request a Quote
Request a quotation for the Electroscope, Needle on our contact page, or collect it with other items in the enquiry cart. Quotes are issued directly by the manufacturer in Ambala.
Last updated: 24 September 2026
