Bell in Bell Jar Manufacturer,Supplier and Exporter in India
Product Code : EL-SLE-11311
Quick Answer: The Bell in Bell Jar is an electric bell for bell jar experiments, used on a pump plate of minimum 15 cm diameter. It works at 4-6 volts AC/DC and is suspended on a rubber cord inside the bell jar.
Last updated: October 2026
Key Features
- For bell jar experiments in laboratories
- Used on a pump plate of minimum 15 cm diameter
- Works at 4-6 volts AC/DC
- Suspended on a rubber cord in the bell jar
- Fine coiled wire connections to terminals on the rubber bung that seals the jar
Technical Specifications
| Specification | Value |
|---|---|
| Operating voltage | 4-6 volts AC/DC |
| Pump plate | Minimum 15 cm diameter |
| Suspension | Rubber cord in the bell jar |
| Connections | Fine coiled wire to terminals on the rubber bung |
About This Product
The bell in bell jar experiment shows that sound needs a medium to travel. A ringing bell is placed in a jar, and as a vacuum pump removes the air, the sound grows fainter although the hammer can still be seen striking the gong. When air is let back in, the sound returns. The bell hangs on a rubber cord so that vibrations do not pass easily through to the base.
Frequently Asked Questions
Q1. What voltage does the Bell in Bell Jar need?
It works at 4-6 volts AC/DC.
Q2. What pump plate size is needed?
It is used on a pump plate of minimum 15 cm diameter.
Q3. How is the bell held in the jar?
It is suspended on a rubber cord in the bell jar, with fine coiled wire connections to terminals attached to the rubber bung that seals the jar.
Related: School Lab Equipment, Electric Bell, Resonance Apparatus (Complete), Kinetic Theory Apparatus.
For a quotation on the Bell in Bell Jar, contact School Lab Equipment India.