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Forum Thread: How to Make a Solenoid at Home?

How does a solenoid work? When the iron core is applied to the solenoid coil, the iron core is magnetized by the magnetic field of the solenoid coil. After magnetization, the iron core becomes a magnetic field, two magnetic fields will increase the magnetism of the solenoid. In addition to, the solenoid cannot be made of steel, or once steel is magnetized, the magnetism cannot be controlled by the current, the advantages of the solenoid will disappear.

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