Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome occurs when increased temperature narrows the band gap?
A)Intrinsic carrier concentration exponentially increases✓
B)Drift mobility decreases linearly
C)Fermi level shifts deep into bands
D)Applied voltage offsets contact depletion
💡 Explanation
Intrinsic carrier concentration experiences exponential growth because band gap narrowing leads to increased thermal excitation of electrons across the gap via thermal radiation increasing the number of electron-hole pairs; therefore conductivity goes up, rather than Fermi level shifts arising, linked to doping
🏆 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 outcome results when impurity atoms distort a crystal lattice?
- During MRI operation, which effect limits image resolution?
- Which risk increases when parasitic capacitance couples inductors?
- Which risk increases significantly when designing polyethylene gas pipelines at low temperatures?
- Which mechanism reduces electrical resistance when a superconducting cable approaches critical temperature?
- Which consequence results when Boltzmann's constant nears zero during molecular simulations?
