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DC Resistance of a Wire

Last modified by
on
Mar 25, 2024, 6:23:45 PM
Created by
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Oct 23, 2016, 4:43:48 AM
R=ρlpAw
(ρ)Resistivity in units Ω
(A_w)"Cross-sectional Area of Wire "
(l_p)"Length of Wire "
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The DC Resistance of a Wire calculator computes the DC resistance of a wire of length lp  whose cross sectional area (bare wire) is Aw.

INSTRUCTIONS: Choose your preferred units and enter the following:

  • (ρ)  Resistivity of Wire (Ω•cm)
  • (lp) Length of Wire 
  • (Aw) Cross Sectional Area of the bare wire.

DC Resistance: The calculator returns the resistance in Ohms.  However, this can be automatically converted to other units via the pull-down menu.

General Information

The resistivity of soft-annealed copper at room temperature is 1.724 x 10^-6 Omega * cm.


AC / DC Calculator Information


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