Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome results when a silicon crystal lattice contains phosphorus impurities?
A)Increased free electron concentration✓
B)Enhanced phonon scattering strength
C)Reduced hole carrier mobility
D)Augmented intrinsic thermal resistance
💡 Explanation
Introducing phosphorus causes n-type doping because each dopant contributes an electron available for conduction. This process exhibits extrinsic semiconductor behavior. Therefore, the free electron concentration increases, rather than changes in phonon behavior or hole concentration.
🏆 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 exceeding the maximum allowable reverse voltage in a silicon PN junction diode?
- Which risk increases when turbulent kinetic energy overwhelms dissipation?
- Which risk increases upon molecular contamination within bearings?
- Which outcome occurs when a covalent molecular crystal is thermally stressed above its glass transition temperature?
- Which mechanism causes signal attenuation when a radio wave propagates through a densely forested area?
- Which process occurs inside a Haber-Bosch reactor when the catalyst surface area becomes significantly reduced due to poisoning?
