noun
magnetic circuit
Technical term in electrical engineering and physics; refers to a closed path of magnetic flux, analogous to an electric circuit.
磁気回路の設計には、磁気抵抗を考慮する必要がある。
When designing a magnetic circuit, it is necessary to consider magnetic reluctance.
電気回路 is an electric circuit, while 磁気回路 is a magnetic circuit, which is the magnetic counterpart.
Compound of 磁気 (magnetism) + 回路 (circuit).