magnetize

definition: 
Give magnetic properties to; make magnetic
sentence: 
Because the string is magnetized, the magnetic field surrounding it will also vibrate with the string.
Placing it close enough to a magnet or placing it in a strong electromagnetic field can magnetize non - magnetized magnetite.
When the material is magnetized, usually by applying a high intensity pulse from an external magnetizing field, many of the individual domains rotate so that they are aligned with the external field.
difficulty: 
easy
toefl frequency: 
2
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