VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesScienceQuestion
Question
Science

Which instability results when a current-carrying wire is placed near a ferromagnetic core reaching its Curie temperature?

A)Increased inductive reactance is observed
B)Barkhausen jumps induce voltage noise
C)Magnetostriction creates mechanical resonance
D)Spontaneous magnetoelectric coupling occurs

💡 Explanation

Barkhausen jumps induce voltage noise because domain walls abruptly shift direction rather than smoothly rotating because the thermal energy approaches magnetic exchange energy, therefore causing sharp voltage spikes along nearby conductors, rather than inductive or mechanical effects in the non-ferromagnetic wire.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse Science