Current division
I1 = I_total × R2 / (R1 + R2) and I2 = I_total × R1 / (R1 + R2).
Circuits
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Current Divider Calculator
Split a total current between two parallel resistors.
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The smaller resistance takes the larger share of current.
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Assumptions and limits.
- Two parallel resistors and an ideal current source.
Frequently asked questions
Why is the formula inverted?
Current takes the path of least resistance, so the opposite resistor appears in each numerator.