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Carla draws two circuit diagrams that connect the same components in different ways, as shown.
Which statement about the circuits is correct?
The total resistance in Circuit A is greater than that in Circuit B.
When a bulb in Circuit A goes out, the other bulbs keep shining.
The bulbs in Circuit A shine brighter than those in Circuit B.
When a bulb in Circuit B goes out, the other bulbs go out.
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GPT-5 mini
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The correct statement is: "The total resistance in Circuit A is greater than that in Circuit B."
Explanation: Circuit A is the bulbs in series, so resistances add and the total resistance is large. Circuit B is the bulbs in parallel, whose equivalent resistance is less than any single branch, so B has the smaller total resistance.
The other statements are false: in a series circuit (A) if one bulb goes out the whole string stops, and bulbs in series share the supply voltage so are dimmer than the same bulbs in parallel. In a parallel circuit (B) one bulb going out does not stop the others.
Explanation: Circuit A is the bulbs in series, so resistances add and the total resistance is large. Circuit B is the bulbs in parallel, whose equivalent resistance is less than any single branch, so B has the smaller total resistance.
The other statements are false: in a series circuit (A) if one bulb goes out the whole string stops, and bulbs in series share the supply voltage so are dimmer than the same bulbs in parallel. In a parallel circuit (B) one bulb going out does not stop the others.
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