Test and Measurement World Measurements Section

One Stop For Your Test and Measurement Need

Wire Resistivity Calculator | Wire Resistivity Formula

This page covers Wire Resistivity Calculator and Resistivity Formula. This resistivity calculator takes wire resistance, wire length and wire cross sectional area as inputs and calculates resistivity as output.

Introduction:
Resistance of electric conductor depends on following factors.
• Length of conductor
• Cross sectional area of the conductor
• Type of conductor material
• Temperature of the material

➤Resistance (R) = ρ* l / a , Ohms
Where, ρ = Resistivity of the material (in Ohm-meters)
l = length of wire, (in meters)
a = cross section area of wire (in meter2)

• Resistivity varies with temperature.
• Good conductors of electricity possess low values of resistivity.
• Good insulators have high value of resistivity.
• Following are the resistivity values of some of the popular materials.
➤Copper : 1.7 x 10-8 Ωm
➤Aluminium : 2.6 x 10-8 Ωm
➤Carbon : 10 x 10-8 Ωm
➤Glass : 1 x 108 Ωm
➤Mica : 1 x 10-13 Ωm

Wire Resistivity calculator

Following Wire Resistivity calculator calculates resistivity of the wire with formula provided below.

Resistance, Ω (input1) :

Length, meters (input2) :

Cross section area, mm2 (input3) :



Resistivity, ρ (Output):


Example of Wire Resistivity calculator:
INPUTS : Wire resistance = 0.25 Ω , Wire length = 40 meters, Area = 3.2 mm2
OUTPUTS: Resistivity = 2 x 10-8 Ω*m


Resistivity Formula or Equation

Following Resistivity formula is used for calculation in this calculator.


Resistivity Formula

Useful converters and calculators

Temperature coefficient of resistance
Wire Resistivity calculator
Humidity ratio calculator
RAD to Gray conversion

Links to useful Measurements

Following are the links to other useful measurements available on Test and Measurement World website.
Difference between EVM vs subcarriers and EVM vs symbols
Current measurement vs Voltage measurement
Inductance measurement vs Capacitance measurement
Difference between Power and Energy measurements
EMC measurement vs EMI measurement
Electric and Magnetic Field Measurements

What is difference between or comparison between

Following links mention difference or comparison between various equipments:
comparison between VSG and VSA
DIfference between SNA ans VNA
Oscilloscope Bandwidth versus Rise time
Oscilloscope vs Logic Analyzer
Difference between Oscillscope types
Comparison between spectrum and network analyzer



Share this page

Translate this page

Latest Posts