Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome occurs when an avalanche photodiode's (APD) silicon crystal exceeds its bias threshold?
A)Impact ionization causes rapid carrier multiplication✓
B)Tunneling creates parasitic capacitance effects
C)Recombination increases average noise floor
D)Trapping reduces electron carrier drift mobility
💡 Explanation
Avalanche multiplication occurs because, above the bias threshold, impact ionization initiates a chain reaction. This causes rapid carrier multiplication within the silicon crystal; therefore increased gain, rather than increased noise, occurs under these conditions.
🏆 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 mechanism affects charge storage when increasing dielectric thickness?
- Which mechanism limits maximum data propagation speed in optical fiber communication systems?
- Which outcome occurs when silicon doping alters gallium arsenide molecular orbitals?
- Which outcome results when excess product accumulates in catalytic converter?
- Which consequence results when highly viscous fluid exceeds the Reynolds number threshold inside a narrow pipe?
- Which outcome reduces the structural integrity of epoxy adhesives used in bridge construction when exposed to deicing salts?
