In which of the following circuit arrangements will the bulbs be the brightest?
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Worked Solution
Step 1: Brightness depends on the amount of current/voltage.
Step 2: Adding batteries in series increases the voltage.
Step 3: Two batteries in series provide double the electrical energy of one battery.
Step 4: This results in brighter bulbs compared to a single-battery setup.
Correct answer: Two bulbs in series with two batteries
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