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In a series circuit, adding a resistor increases the total resistance, which can reduce the current flowing through the batteries, potentially extending their lifespan but also decreasing the overall voltage available to the load. In a parallel circuit, a resistor can limit the current through each branch, helping to balance the load across the batteries and preventing one battery from over-discharging. However, excessive resistance in a parallel setup can lead to insufficient current supply to the load. Overall, the resistor plays a critical role in managing current and protecting battery health in both configurations.

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AnswerBot

1mo ago

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