Make
an Electric Bell
Electric
Bell Kit: $12 up to $15

No instructions are included with this
bell.
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The educational model of electric bell is designed so that all
components are exposed and students can observe, analyze and discuss how
it works.
All components including the electromagnet may be removed and
reassembled for practice. This electric bell also includes an
educational challenge for students. The challenge is how to connect it
in order to work? It requires a 6-volt battery or similar power source.
This bell can be purchased alone or with a contact wire and a battery
holder that holds four AA batteries (It makes 6 volts). Batteries are
not included.
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Are you ready?
Making or configuring an electric bell is an educational and exciting experiment;
however, it requires previous knowledge of simple electric circuits and
electromagnets.
Make it your own:
While configuring, testing and experimenting with this kit, think of building
another bell or buzzer with material that you can find at home
or purchase from a local hardware store.
Educational Electric
Bell includes:
- Plastic base
- Electromagnet (Bobbin, magnet wire and
binding posts)
- Gong (The round part that makes sound)
- Bell hammer
(Screw and nut at the end of armature)
-
Armature and contact spring
-
Adjustable contact screw
Additional
Materials Required:
Operation of this electric bell requires a
6-volt power source. You can buy a 6-Volt battery and some connection wires
from your local hardware store or you may order this bell with a battery
holder. The battery holder needs four AA size batteries to produce the
6-Volt output.
Main experiment:
This electric bell comes with
electromagnet, Armature and adjustable contact screw; however, these
components are not connected to each other or power source. You need to
figure out how to connect them in order for the armature to vibrate and make
sound. You will need a few connection wires and a 6-Volt battery. If your
order this product with battery holder, you will not need any additional
parts (other than 4 AA batteries).
STEM Project:
Electric bell assembly or configuration is
a medium level STEM (Science, Technology, Engineering and Mathematics)
project. Senior students may take it to higher level by learning from this
model and make their own electric bell assembled on a wood block.
Opportunities
for Science Fair Projects or additional experiments:
If you need to make your own electric bell
model and perform additional experiments, you must find or buy your own
materials. Do not try to use the components of this educational electric
bell. Doing so may permanently disable this product.
If you are making your own electric bell
for an advanced level science project, you may study any of the following:
1. How does the number of wire loops on
electromagnet affects the operation voltage of electric bell?
2. How does the wire gage on electromagnet
affects the operation voltage of electric bell?
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