Concept of partial resistance


The partial resistance is defined as the resistance encountered by a uniform current which flows in a part of conductor (or partial element in the PEEC meaning).


The formula for the computation of the partial resistance of a PEEC element comes from the Ohm's law under the hypothesis of uniform current density. Thus, it corresponds to the relationship expressing the DC-resistance of an elementary bar.

The partial resistance for a rectilinear conductor of variously shaped cross-section is then given by the following formula:


  • ρ is the resistivity of the conductor material
  • L is the length of the conductor
  • S is the conductor cross-section