Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich light emission change occurs when LED current exceeds rated capacity?
A)Decreased quantum efficiency results✓
B)Increased spectral bandwidth occurs
C)Uniform spectral shift happens
D)Enhanced carrier recombination happens
💡 Explanation
Exceeding the rated current induces increased non-radiative recombination via Auger recombination, because the **Auger effect** causes electron-hole pairs to recombine without emitting photons; therefore, quantum efficiency decreases, rather than enhancing useful light output or shifting the spectrum.
🏆 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 Technology →- Which consequence results when PLC interrupt latency exceeds scan time?
- Which risk increases when an antenna receives excessive multipath signals?
- Which consequence results when cyclic redundancy check (CRC) failure corrupts PLC memory?
- Which dangerous outcome occurs when fuel is atomized poorly?
- Which programming error most directly causes robotic joint oscillation when following sensor input?
- Which performance outcome results when fiber optic signal dispersion increases?