Series and parallel circuits — Calculate

Question
Question

How do you calculate the combined resistance of two resistors connected in parallel?

Answer

1/R = 1/R1 + 1/R2 (equivalently R = R1R2 / (R1+R2)); the combined resistance is always smaller than the smaller of the two individual resistances.

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Lesson complete You've finished all 12 sections of Series and parallel circuits.