Siti set up a circuit with two bulbs and two batteries. She noticed that when one bulb was unscrewed, the other bulb remained lit. How were the bulbs arranged?
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Worked Solution
Step 1: Identify the observation (one bulb stays lit when the other is removed).
Step 2: Recall that in a parallel circuit, there are multiple paths for electricity to flow.
Step 3: Therefore, the bulbs must be in parallel.
Correct answer: In parallel
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