Does the questioner want to ask "What is the reason why the mobile phone cannot be charged after being sucked into the MRI scan in the hospital?" The motherboard of the mobile phone is magnetized. The MRI machine in the hospital will produce a strong magnetic field, which will cause electromagnetic interference to the internal motherboard of the mobile phone, causing the motherboard to become magnetized, making the mobile phone unable to be used and charged. Nuclear magnetic resonance is a physical process in which the atomic nucleus with a non-zero magnetic moment undergoes Zeeman splitting in the spin energy level under the action of an external magnetic field, and the nuclear vibration absorbs radio frequency radiation of a certain frequency.