Christmas Light Webquest


How does a light circuit affect the strand of Christmas lights with a burned out bulb ?

The light circuit

The light strand

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I noticed that no matter what you did the bulbs would stay lit until you removed the battery.
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This is evidence of the parallel circuit working when you disconnect a bulb.

Series Circuit

When one bulb goes out they all do. If the series circuit has a bulb that breaks then all bulbs on the circuit will go out.
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a series circuit while it has all it bulbs
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A series circuit with one bulb missing.


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In conclusion the parallel circuit is the better circuit. When one bulb bursts or goes out the other will stay lit. With a series circuit when one goes out all will go out. Another reason is parallel circuits catch fire much less than a series circuit.