Bell Experiment Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-PLE-10290
Lab Instruments Manufacturers manufactures the Bell Experiment Apparatus in-house at our own India facility, supplying it to physics laboratories in schools and colleges, and as an OEM/private-label item to distributors and exporters across India and internationally.
What This Apparatus Does
The Bell Experiment Apparatus demonstrates that sound cannot be transmitted through a vacuum. It consists of a 2-litre bell jar with a rubber stopper fitted with binding posts and connectors, from which an electric bell is suspended. The bell operates on 3 to 6 volts, using either a battery or a transformer as the power source. As air is evacuated from the jar, students observe the bell's sound diminish even though the striker can still be seen moving.
| Specification | Detail |
|---|---|
| Bell jar capacity | 2 litre |
| Stopper | Rubber, fitted with binding posts and connectors |
| Bell | Electric, suspended inside the jar |
| Operating voltage | 3 to 6 volts (battery or transformer) |
Typical Use
School and college physics laboratories use this apparatus to demonstrate that sound waves require a medium to travel, evacuating the bell jar with a vacuum pump and observing the change in sound level as air is removed.
Manufactured In-House
This apparatus is manufactured at our own India production facility. Manufacturing in-house means our team controls seal quality on the stopper and jar fitting at every stage, and can produce custom sizes or bulk sets for a specific institutional order or export shipment without waiting on an outside supplier.
Frequently Asked Questions
What does the Bell Experiment Apparatus demonstrate?
That sound cannot be transmitted through a vacuum, by evacuating air from around an electric bell sealed inside a bell jar.
What power supply does the bell need?
3 to 6 volts, from either a battery or a transformer.
Can this be supplied as an OEM/private-label order?
Yes, it can be produced and packed under a buyer's own brand name and item codes for distributors and exporters ordering in bulk.
Related Equipment
Evacuate it with the Air Pump / Vacuum Pump with Aluminium Plate; a separate Bell Jar is also listed. The Magdeburg Hemisphere demonstrates air pressure with the same pump, and all three are in Physics Lab Equipments of Physics Lab Equipment.
Last updated: October 2026.
