Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich effect occurs when increasing dopant concentration in extrinsic semiconductors?
A)Band gap energy narrowing occurs✓
B)Electron mobility always increases linearly
C)Thermal runaway always is prevented
D)Intrinsic carrier concentration always decreases
💡 Explanation
Band gap narrowing occurs because increased dopant concentration introduces statistically significant interactions between the dopant's quantum orbitals, causing distortions; therefore, the gap shrinks, rather than intrinsic carrier concentration decreasing, which would dominate at very low temperatures.
🏆 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 back-reflected laser light couples into a laser cavity?
- Which risk increases when biodiesel fuel contains excess water?
- Which consequence results when intense gravity is present near navigational satellites?
- Which risk increases as the lubrication pump's clearance widens?
- During electrolysis of water with high overpotential electrodes, which outcome is linked to hydrogen evolution?
- Which outcome occurs when control of deuterium-tritium plasma temperatures fails in a tokamak reactor?
