Note that resistivity depends on temperature . The values above are for temperatures 20 o C .
Note that good conductors of electricity have low resistivity and good insulators have high resistivity.
The resistance of 10 meter gauge 17 copper wire with cross sectional area 1.04 mm 2 can be calculated as
R = (1.7 x 10 -8 Ω m) (10 m) / ((1.04 mm 2 )(10 -6 m 2 /mm 2 ))
= 0.16 Ω
The copper wire above is reduced to gauge 24 and cross-sectional area 0.205 mm 2 . The increase in resistance can be calculated to
R = (1.7 x 10 -8 Ω m) (10 m) / ((0.205 mm 2 )(10 -6 m 2 /mm 2 ))
= 0.83 Ω
Electrical units, amps and electrical wiring, wire gauge and AWG, electrical formulas and motors.
Electrical resistance in plain copper or aluminum wires.
Characteristics of all-aluminum conductors (AAC).
Estimate structures natural vibration frequency.
Electric resistance in wire made of Copper, Aluminum, Brass, Constantan, Nichrome, Platinum, Silver or Tungsten.
Electric conductance is the ability of a element to conduct an electric current.
Maximum electrical motor cable length vs. power.
Resistance, voltage and current in electrical parallel circuits.
Kirchhoff's current and voltage laws.
Electric resistance vs. temperature rise for Nickel-Chromium electrical heater wire.
Output voltage with a potential divider.
Resistivity, conductivity and temperature coefficients for common materials like silver, gold, platinum, iron and more..
Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!
We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.
Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.