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David Heintz
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A & H Electric Co.
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Office: (936) 756-0442

Category: Electrical Insulators

How It Works: The Light Bulb

A&H Electric, Electrical, Electrical Insulators, Electricity 101, Light Bulbs, Lighting

In 1878 and 1879, both Englishman Sir Joseph Swan and American Thomas Edison were able to create lighting device, called a light bulb. Both light bulbs of the mid 1800s were effective enough then that the structure of the light bulb has not changed much.

A glass light bulb will contain several parts in order to create energy. When the light bulb has a power supply, such as being screwed into a lamb, an electric current will flow within the circuit, and then light is emitted. In this picture from HowStuffWorks, you can see that there is a (n):

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Science Class: Electrical Insulators

A&H Electric, Electrical, Electrical Insulators, Electricity 101

Do you recall being in a science class and learning about electricity?

 

Just the thought of electricity made many nervous, while others were intrigued. The teacher then brought out wires, batteries, light bulbs, and wire cutters. This lesson taught us about electrical currents, which was demonstrated by connecting the now stripped wires to the batteries, in a circle, and then adding in the light bulb into the circuit.

 

 

What happened next? The light bulb became lit, and excitement filled the classroom of elementary school students.

Now did you ever wonder why you were not shocked by touching the “exposed” wires?

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