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Low-Frequency Electromagnetics Blog Posts

Losses in Three-Phase Transmission Lines

July 26, 2022

Explore how to model the losses in three copper wires in a linear and an equilateral arrangement.

Computing Transformer Equivalent Circuit Parameters

July 15, 2022

The magnetizing and leakage inductances of a transformer can be found using an open-circuit test and a short-circuit test, respectively. Learn how to simulate these tests here.

Predicting the Effects of Induction Heating with Simulation

November 19, 2021

What is induction heating? What are the benefits of it? Can it be simulated with COMSOL Multiphysics? Keep reading to find out…

Micromagnetic Simulation with COMSOL Multiphysics®

September 24, 2021

A guest blogger from Fudan University in China used the Physics Builder in COMSOL Multiphysics to create a “Micromagnetics Module” for performing micromagnetic simulations.

Computing Loss, Temperature, and Efficiency in Electric Motors

September 23, 2021

Follow along as we investigate the variation of iron and copper losses, the resulting temperature rise, and its effect on the efficiency of a permanent magnet machine.

Voltage and Ground When Modeling Wave-Like EM Fields

June 17, 2021

We continue our discussion of voltage and ground by defining and interpreting these terms for sinusoidally time-varying electromagnetics models.

Do Voltage and Ground Exist?

June 15, 2021

Remember how the terms “voltage” and “ground” were taught in your university electrical engineering classes? Get a precise definition (in terms of modeling computational EM problems) here.

How to Model a Hall Effect Sensor with COMSOL Multiphysics®

March 11, 2021

Basic working principle of a Hall effect sensor: A nearby magnetic field deflects the path of current through a semiconductive sensor, which causes a measurable change in potential.


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