A hollow inductor coil inductor mudziyo usingade magineti musimboti. Iyo inotsamira pane coil windings uye mhepo yepakati mukati kuti iwane inductance mhedzisiro. Iyi dhizaini inoratidzira yakaderera magineti hysteresis kurasikirwa, yakafara frequency renji, uye yakakwirira mutsara, ichiita kuti ishandiswe zvakanyanya mumidziyo yekutaurirana, RF antennas, michina yekurapa, nezvimwe.