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Two resistors, R1 and R2, are connected in series. What is their equivalent resi

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1. Two resistors, R1 and R2, are connected in series. What is their equivalent resistance?

R1 minus R2

R1 plus R2

R1 times R2, divided by their sum

Their sum, divided by their product

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Resistors in series simply add together: the equivalent resistance is R1 + R2.

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