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
Part of our Physics Lab Equipments range. This apparatus is typically evacuated using an Air Pump (Vacuum Pump with Aluminium Plate). For pricing and specification sheets, reach us via Contact Us or the Tenders page.
Explore more Physics Lab Equipments in our Physics Lab Equipment range, including the Air Pump (Vacuum Pump with Aluminium Plate) and the Bell Jar.
Last updated: September 2026.
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