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Can you find the 4 pairs of letters that allow the light to turn on in the fewest number of attempts?
Watch the video on how to make a circuit puzzle in the supporting documents folder. When you touch the correct pair of letters with the two electrodes/clamps, a light bulb will come on (because the letters are connected by a piece of conductive foil on the back side of the circuit puzzle). What are the minimum and maximum numbers of pairs of letters you will need to test to guarantee that you figure out the 4 pairs that allow the light to turn on?
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