# Quasistatic Solvers in Ansys Maxwell — Lesson 2

In the previous lesson we discussed the magnetostatic solver. In this lesson, we will discuss other quasistatic solvers. The eddy current solver is another static magnetic solver.

Coming to static electric solvers, there are three types: electrostatic,  AC conduction and DC conduction. The first two are available for both 2D and 3D models, while the third one is available only for 2D analysis.

This lesson consists of one lecture and four workshops.

The following concepts are covered in this lecture:

• Eddy current solver
• Electrostatic solver
• AC conduction and DC conduction solvers

### Workshop 2.1: Eddy Current Analysis

This workshop introduces the eddy current solver based on a simple example with a disk above a coil in Maxwell 2D. This solver calculates the magnetic fields at a specified sinusoidal frequency. Both linear and nonlinear (for saturation effects) magnetic materials can be used. Also, eddy, skin and proximity effects are considered.

### Workshop 2.2: Electrostatic Analysis

This workshop introduces the electrostatic solver based on some simple examples in Maxwell 2D. This solver is meant to solve the static electric field without current flowing in conductors (conductors are in electrostatic equilibrium). The conductors are considered perfect such that there is no electric field inside them.

The Workshop contains the following three examples
Example1: Cylindrical capacitor in RZ
• In this example, we will determine the electric field distribution of a coaxial cable based on the potential (or the charges) that are applied on each conductor. Coaxial cable will be solved with RZ representation.
Example2: Cylindrical capacitor in XY
• The same problem in XY representation.
Example3: Capacitance of a planar capacitor
• In this example we simulate a simple planar capacitor made of two parallel conducting plates.

### Workshop 2.3: 3D Eddy Current analysis

This workshop introduces the eddy current solver based on a simple example with a disk above a coil in Maxwell 3D. This solver calculates the magnetic fields at a specified sinusoidal frequency. Both linear and nonlinear (for saturation effects) magnetic materials can be used. Also, eddy, skin and proximity effects are considered.

### Workshop 2.4: 3D Electrostatic analysis

This workshop introduces the electrostatic solver based on some simple examples in Maxwell 3D. This solver is meant to solve the static electric field without current flowing in conductors (conductors are in electrostatic equilibrium). The conductors are considered perfect such that there is no electric field inside them.

The Workshop contains the following two examples
Example1: Cylindrical Capacitor
• In this example, we will determine the electric field distribution of a coaxial cable based on the potential (or the
charges) that are applied on each conductor. We will also evaluate the capacitance.
Example2: Capacitance of a planar capacitor
• In this example we simulate a simple planar capacitor made of two parallel conducting plates