Electromagnetism
Electromagnetism is a branch of physics concerned with the interactions between electrically charged particles, such as electrons and protons. It explores how these charges generate forces on one another through electric and magnetic fields. While typically considered separately from fluid mechanics, electromagnetic phenomena can have significant impacts on fluids, leading to phenomena like magnetohydrodynamics. In this context, electromagnetic forces affect the motion of conductive fluids, creating complex interactions between electrical currents, magnetic fields, and fluid flow. Thus, electromagnetism can be seen as a crucial aspect of understanding certain fluid mechanical systems, particularly those involving ionized gases (plasmas) or electrically conducting liquids.