noun
electromagnetism; electrodynamics
Academic term for the physics of electric and magnetic fields and their interactions. Often used in university course names and research contexts.
彼は大学で電磁気学を専攻している。
He is majoring in electromagnetism at university.
電磁気学の基礎を理解するには数学が必要だ。
Understanding the fundamentals of electromagnetism requires mathematics.