Pith Ball Electroscope Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-13411
Jlab Export is a leading Pith Ball Electroscope Manufacturer,and suppliers in India
Pith Ball Electroscope (code EL-PL-13411) hangs two light pith balls on unspun silk threads from a chrome-plated brass pillar set in a wooden base. A charged rod brought near makes the balls swing towards it or away from it, which shows that the rod carries charge. JLab produces this electroscope in Ambala, India, for electrostatics lessons.
Specifications
| Parameter | Detail |
|---|---|
| Model | JL313 |
| Pillar | Chrome-plated brass |
| Base | Wooden |
| Pith balls | 2, suspended on unspun silk |
| Quality check | Each electroscope is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Product code | EL-PL-13411 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Reading Attraction and Repulsion
A neutral pith ball is pulled towards any charged rod, because the rod induces opposite charge on the near side of the ball, so attraction alone does not tell the sign. Let the balls touch the rod: they take some of its charge, fly apart from each other and are then pushed away from the rod. Once the balls carry a known charge, for example from ebonite rubbed with fur, a rod that repels them carries the same sign. Repulsion is the dependable test.
Why the Threads Are Silk
Unspun silk is light and a good insulator, so charge stays on the balls instead of draining down the threads to the metal pillar, and the balls respond to small forces. Work in dry air; on a humid day the charge leaks away faster and the balls fall back together sooner.
Related Electrostatics Items
- Gold Leaf Electroscope — a cased electroscope with a scale to show leaf deflection.
- Ebonite Rod — a polished black rod that is charged by rubbing.
- Glass Rod with Rubbing Material — a glass rod and cloth for giving the balls a positive charge.
See Physics Lab for the rest of the electrostatics and electricity apparatus.
Request a Quote
Select Add To Cart to include this electroscope in an enquiry, or message JLab through the contact page with your quantity and shipping destination.
Last updated: 26 October 2026
