Electric Bell Demonstration Manufacturer,Supplier and Exporter in India
Product Code : SCL-EAE-11257
The Electric Bell Demonstration Model displays the principal working parts of an electric bell on an accessible mounting board. Its exposed arrangement allows students to observe the bell gong, electromagnet coils, armature, striker, contact mechanism, connecting wire and electrical terminals while the apparatus is being demonstrated.
When connected to a suitable low-voltage DC supply, current flows through the electromagnet coils. The magnetic field attracts the armature, moves the striker towards the gong and interrupts the circuit. This rapid make-and-break action repeats automatically and produces the ringing sound associated with an electric bell.
Key Features
Visible operating mechanism: Helps learners observe electromagnetic attraction and mechanical movement directly.
Exposed electromagnet coils: Supports clear explanation of magnetic-field generation by electric current.
Demonstration-size bell: Makes the sound-producing mechanism easier to identify during group instruction.
Accessible connection terminals: Allows straightforward connection to a compatible laboratory power source.
Mounted component layout: Keeps the major parts organised for classroom presentation and practical study.
Hands-on STEM application: Connects theoretical lessons on electricity with observable operation.
Suitable for repeated instruction: Designed for supervised demonstrations in physics and general science laboratories.
Technical Specifications
|
Specification |
Detail |
|
Product type |
Electric bell demonstration apparatus |
|
Main components |
Bell gong, electromagnet coils, armature, striker, contact mechanism and terminals |
|
Mounting format |
Components arranged on a demonstration board with supporting base |
|
Intended environment |
School physics laboratories, science classrooms and STEM activity rooms |
What's Included in the Kit
One electric bell demonstration assembly
Mounted bell gong and striker mechanism
Electromagnet coil assembly
Armature and contact mechanism
Electrical connection terminals
Supporting demonstration board and base
Connecting leads or accessories, if supplied: [confirm]
Applications and Uses
Demonstrating the working principle of an electric bell
Teaching electromagnets and magnetic effects of electric current
Explaining open, closed and automatically interrupted circuits
Studying conversion of electrical energy into sound and mechanical motion
Supporting school physics practicals and teacher-led demonstrations
Conducting introductory electricity and electronics activities
How to Use the Electric Bell Demonstration Model
Place the model on a dry, stable laboratory table.
Identify the gong, striker, armature, electromagnet coils, contact screw and terminals.
Confirm the apparatus voltage before connecting a DC power source.
Connect the power supply leads to the designated terminals with the supply switched off.
Switch on the supply and observe the armature moving towards the electromagnet.
Explain how the moving armature breaks and remakes the circuit repeatedly.
Switch off and disconnect the power source after the demonstration.
Safety note: Use only the confirmed rated voltage. Operation must be supervised by a teacher or laboratory instructor. Do not touch terminals or adjust the contact mechanism while power is connected.
Care & Maintenance
Disconnect the apparatus before cleaning, inspection or adjustment.
Remove dust with a dry, soft cloth; do not apply water or solvents to coils and terminals.
Store the model in a dry cabinet to reduce corrosion and contact oxidation.
Check wires, terminal fittings and the striker mechanism before each practical session.
Why Choose Lab Exports?
Lab Exports manufactures and exports scientific laboratory instruments, experiment apparatus, educational kits and STEM learning equipment. The Electric Bell Demonstration Model is designed for practical instruction in school and institutional physics laboratories. Buyers can also explore the Electrical and Electronics laboratory equipment, the broader Physics Lab equipment range and the complete laboratory product catalogue.
Frequently Asked Questions
What is an Electric Bell Demonstration Model used for?
It is used to demonstrate how an electromagnet, armature, contact mechanism and striker work together to convert electrical energy into sound.
How does the electric bell model work?
Current energises the electromagnet, which attracts the armature and moves the striker. The movement interrupts the circuit, the armature returns, and the cycle repeats rapidly.
Is the model suitable for school physics laboratories?
Yes. Its exposed component layout is suitable for supervised electricity, electromagnetism and circuit demonstrations in schools and STEM laboratories.
What power source is required?
The model requires a compatible low-voltage DC source. Confirm the exact operating voltage printed on the supplied apparatus before connection.
Can students operate the electric bell model?
Students may use it under teacher supervision. The power must be disconnected before terminals, wires or the contact mechanism are handled.
Does the apparatus explain energy conversion?
Yes. It demonstrates the conversion of electrical energy into magnetic action, mechanical movement and sound energy.
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