File:DifferentialChordalResistance.svg
Summary
The IV curve of a nonlinear (non-ohmic) electrical device (purple), showing the difference between static and differential resistance. The curve shows the current through it (I) for any given voltage (V). In a non-ohmic device, the resistance is not constant but varies depending on the voltage across it. At any point A two types of resistance can be defined. "Static resistance" (also called DC or chordal resistance) Rstatic = V/I is the inverse slope of line B from the point A through the origin. The "differential resistance" (also called incremental or small-signal resistance) Rdiff = dV/dI is the inverse slope of the line C tangent to the curve at A.
Licensing
Lua error in package.lua at line 80: module 'strict' not found.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:29, 3 January 2017 | | 374 × 246 (16 KB) | 127.0.0.1 (talk) | The <i>IV</i> curve of a nonlinear (non-ohmic) electrical device (purple), showing the difference between static and differential resistance. The curve shows the current through it <i>(I)</i> for any given voltage <i>(V)</i>. In a non-ohmic device, the resistance is not constant but varies depending on the voltage across it. At any point A two types of resistance can be defined. "<i>Static resistance</i>" (also called DC or chordal resistance) <i><b>R<sub>static</sub></b></i> = <i><b>V</b></i>/<i><b>I</b></i> is the inverse slope of line B from the point A through the origin. The "differential resistance" (also called incremental or small-signal resistance) <i><b>R<sub>diff</sub></b></i> = <i><b>dV</b></i>/<i><b>dI</b></i> is the inverse slope of the line C tangent to the curve at A. |
- You cannot overwrite this file.
File usage
The following 2 pages link to this file:
