Christmas Lights

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

Independent Variable- Electricity" battery"

Dependent Variable- The light bulbs

If the Christmas lights are arranged in a parallel circuit  , then when 1 bulb burst the other bulbs do light.

I noticed that when the it was parallel  it allowed more bulbs allowing more light and the battery wouldn't catch on fire.

I noticed even thought that even though it had less bulbs the battery caught on fire unlike the parallel circuit.

If the Christmas lights are arranged in a series circuit then when 1 bulb burst the other bulbs don't light up.

I noticed that it had the same amount of bulbs as the parallel circuits it was still dim like the series circuit

I noticed that there was 2 bulbs and it was as bright as the parallel.

My conclusion is a parallel circuit is the best series to use fo Christmas lights because if one goes out the others stay.

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