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Electronics
Loaded voltage divider
Calculate a two-resistor divider, including the effect of a load connected across its lower resistor.
Inputs
Example valuesResults
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The calculation
Rb = R2 || Rload (or R2 with no load) Vout = Vin × Rb / (R1 + Rb) Iin = Vin / (R1 + Rb)
Assumptions & limits
The output is measured across R2. Ideal voltage source and resistors; the source’s internal resistance is excluded.
Background: Electric circuits · OpenStax University Physics
