방사선사나라 Radiographer Nara

(English) Resistive magnet? 1. Iron-core resistive magnet type (H type) It is also called H type because it is made of an electromagnet by winding a coil of copper or aluminum around the center of iron. Relatively strong magnets can be made with little power, and unlike air-core resistive magnet type and superconducting magnet, magnetic flux is completely sealed. For this reason, devices for hum..