Quick Answer: Bell Experiment Apparatus is a 2 litre bell jar with a rubber stopper carrying binding posts and connectors, from which an electric bell is suspended. It runs on 3 to 6 volts and shows that sound cannot be transmitted in a vacuum.
Last updated: October 2026
Key Features
2 litre bell jar
Rubber stopper with binding posts and connectors
Electric bell suspended from the stopper
Operates on 3 to 6 volts from a battery or a transformer
Used with Air Pump (Vacuum Pump with Aluminium Plate)
Technical Specifications
Specification
Value
Bell jar
2 litre
Stopper
Rubber, with binding posts and connectors
Bell
Electric, suspended from the stopper
Supply
3 to 6 volts, battery or transformer
Used with
Air Pump (Vacuum Pump with Aluminium Plate)
About This Product
Used with the Air Pump (Vacuum Pump with Aluminium Plate), it demonstrates in the Properties of Matter lab that sound cannot be transmitted in a vacuum. The bell can be powered from either a battery or a transformer.
Frequently Asked Questions
Q1. What power does the bell need? It operates on 3 to 6 volts, using either a battery or a transformer.
Q2. Which pump is the Bell Experiment Apparatus used with? The Air Pump (Vacuum Pump with Aluminium Plate).
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