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← ScienceWhich risk increases when applying external stress to a ferromagnetic material?
A)Increased magnetic domain wall movement✓
B)Increased Curie temperature stability
C)Decreased magnetostrictive core losses
D)Decreased hysteresis loop coercivity
💡 Explanation
Increased stress allows domain walls to move more easily via magnetostriction, because any change in local alignment lowers the energy; therefore, domain wall movement increases, rather than maintaining stability or reducing losses as would be desirable for specialized applications.
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