Resistance of a Cylindrical Conductor

Instructions: Specify the frequency, length, diameter and choose a conductor material from the drop-down list. To specify a custom material, enter the relative permeability and either the resistivity or the conductivity of the material.

The resistance of the conductor is calculated using the equations in the figure on the right. At low frequencies, where the wire radius is less than two skin depths, the resistance is approximately equal to the DC resistance, R_LF. At frequencies, where the skin depth is small compared to the wire radius, the equation for R_HF is employed.