Siti set up a circuit with two identical bulbs and two identical batteries. She noticed that the bulbs in her circuit were dimmer than the bulbs in Sara's circuit, which also used the same components. How were the bulbs in Siti's circuit most likely arranged?
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Worked Solution
Step 1: Identify that dimness indicates less electrical energy reaching each bulb.
Step 2: In a series arrangement, the voltage of the batteries is shared between the bulbs.
Step 3: In a parallel arrangement, each bulb receives the full voltage.
Step 4: Therefore, Siti's bulbs must be in series.
Correct answer: The bulbs were arranged in series.
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