It also consists of three parts ( Figure 1.13 ): Diaphragm Electromagnetic Permanent magnet When a varying electrical current flows through the electromagnet, the resulting magnetic field either attracts or opposes the magnetic field of the permanent magnet.
(It; consists; ) (the resulting magnetic field; attracts; ) (the resulting magnetic field; opposes; the magnetic field of the permanent magnet)
It the resulting magnetic field the resulting magnetic field
consists attracts opposes
the magnetic field of the permanent magnet