Electrical engineering and electronics · Circuit fundamentals
Two-resistor parallel resistance
Calculate equivalent resistance for two ideal resistors connected in parallel.
Method and scope
Req = 1/(1/R₁ + 1/R₂) = R₁R₂/(R₁ + R₂).
Use two-resistor parallel resistance for educational calculation or a clearly scoped arithmetic estimate. Intended for Learners, General educational use.
Inputs- Resistor 1 — Ω, kΩ, MΩ
- Resistor 2 — Ω, kΩ, MΩ
SOURCE AND LIMITS
Assumptions: The components are ideal resistors connected across the same two nodes.
Limitations: A real network may contain more branches and non-resistive components.
Method version 1.0.0 · Unit registry and result provenance are shown after calculation. This tool is limited to the documented scope.Explore related fields
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