Intended for the engineering professional or senior level undergraduate and graduate students, Multiphysics Modeling Using COMSOL, presents a problem-solving methodology, based on multiphysics modeling and physics First Principles, for the solution of the difficult problems that are typically found during the development of new thermal, electrical, electronic, and electromagnetic devices, sensors and systems. The text also introduces the readers to the numerical analysis modeling techniques employed in the COMSOL multiphysics software. It further discusses the application of these techniques to the solution of the varied difficult engineering problem types typically found in today's high tech physical world.