Alexa has a circuit with one battery and two bulbs in series. If she adds a third identical bulb in series, what will happen to the brightness of the bulbs?
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Worked Solution
Step 1: In a series circuit, the electrical energy provided by the battery is shared among the components.
Step 2: Adding a third bulb increases the resistance in the single pathway.
Step 3: The electrical energy must now be shared among three bulbs instead of two, causing them to light up less brightly.
Correct answer: They will become dimmer.
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