Description
loopResistance = 2*resistivity*oneWayLength/area.
Ideal electrical component relations assume a stated topology, fixed parameters and coherent units. A local voltage, current or transformation term can be algebraically valid without accounting for parasitics, ratings or safe practical connections.
loopResistance = 2*resistivity*oneWayLength/area.
When to use this tool
Use Cable Resistance Two Wire Loop Factor when checking one explicit ideal-component or divider relationship.
How to use the tool and how it works
- Enter resistivity, oneWayLength, area. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read loopResistance. Use the output convention below.
Require nonnegative resistivity and oneWayLength and positive area. loopResistance = 2*resistivity*oneWayLength/area.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| resistivity | Resistivity | Required. Finite number; minimum 0. |
| oneWayLength | One Way Length | Required. Finite number; minimum 0. |
| area | Area | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| loopResistance | Loop Resistance | Required. Finite number. |
{
"input": {
"resistivity": 1.72e-8,
"oneWayLength": 10,
"area": 0.000001
},
"output": {
"loopResistance": 0.344
}
}Limitations and assumptions
- Use coherent units, such as ohm-meters, meters and m². The factor two assumes equal outgoing and return conductors; contacts, temperature and AC effects are omitted.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use a complete circuit model and qualified practical design when loading, nonlinearity, transients or safety limits matter.
References
Similar or alternative tools
- Diode Small Signal Conductance At Point
conductance = (forwardCurrent+saturationCurrent)/(ideality*thermalVoltage); resistance is its reciprocal.
- Electricity: Ideal Diode Branch Drop Check
onBranchConsistent checks forwardCurrent >= -tolerance and abs(anodeMinusCathodeVoltage) <= tolerance.