Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome occurs when repeatedly applying reverse magnetic field pulses at specific frequencies to a ferromagnetic core within a magnetic recording device?
A)Hysteresis loop energy loss increases✓
B)Curie temperature of the core decreases
C)Spontaneous magnetization becomes irreversible
D)Coercivity of core material diminishes
💡 Explanation
Hysteresis loop energy loss increases because repeated application of reverse magnetic fields at a material's resonant frequency induces FMR (ferromagnetic resonance), therefore greater energy dissipates as heat rather than magnetic domain switching efficiently, rather than altering the Curie temp or coercivity.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which consequence results when diminished strong force nucleon binding?
- Which consequence results when ethylene polymerization lacks suitable termination molecules?
- Which outcome occurs when eddy currents saturate laminated transformer cores?
- Which outcome occurs when radon gas accumulates indoors?
- Which outcome results when Helium-3 lacks sufficient neutron binding?
- Which mechanism causes reduced efficiency when piezoelectric ceramics reach Curie temperature?
