# Solid conductor component

## Introduction

From the physical point of view, a solid conductor is a thick conductor, where the effect of the eddy currents must be considered. The skin depth has a value comparable to or smaller than the conductor cross-section, and the current density is non-uniform on the conductor cross-section.

## Solid conductor: representation

A solid conductor is described:

- in the finite elements domain by a region of solid conductor type
- in the electrical circuit by a component of solid conductor type

## Solid conductor: relation U, I, Φ

The basic relation linking the
current **I**, the voltage **U** and the flux **Φ** is given below.

The
current flowing through a solid conductor component is the total current **I**
flowing through the correspondent solid conductor region of the finite element
domain.

The voltage at the terminals of a solid conductor component is the voltage
**U** between the front and the back faces of the modeled solid conductor
region.

where:

- R is the resistance of the conductor
- Φ is the flux embraced by the conductor