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Resistor calculator

Enter the resistor values and choose the configuration.

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10 Ω and 20 Ω in series give 30 Ω; in parallel 6.67 Ω.

Example

Combine resistors in series or in parallel.

10 Ω and 20 Ω in series give 30 Ω; in parallel 6.67 Ω.

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Methodology

Series sums the values; parallel uses the reciprocal sum.

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