FieldengElectrical & Power
Cable Voltage Drop
Voltage drop from cable current and resistance.
Electrical & PowerInstrumentation & Controls
Voltage drop from cable current and resistance.
App id: CABLE-02. Reference version 1.0.
How to fill it
Fill the inputs. The tool shows the outputs.
On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.
Formula
Vdrop = I × RInputs
| Name | Unit |
|---|---|
| Current | A |
| Resistance | ohm |
Outputs
| Name | Unit |
|---|---|
| Voltage drop (hero result) | V |
Diagnose
This tool does not attach diagnose observations.
Assumptions
- User must choose one-way vs round-trip length before computing R. This screen is I×R only.
- Direct current. Resistance is non-negative. Signed current yields signed drop.
Provenance
- Ohm’s law voltage drop V = I × R.