Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich performance issue is observed when base-emitter junction temperature rises in a BJT-based amplifier?
A)Thermal runaway escalation occurs rapidly✓
B)Current gain stabilizes unexpectedly
C)Cutoff frequency increases sharply
D)Reverse saturation minimizes noticeably
💡 Explanation
Thermal runaway appears because increased temperature amplifies the collector current; therefore *positive feedback* accelerates thermal dissipation, making the overall circuit efficiency decrease, rather than maintaining stable operation or improving parameters.
🏆 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 joint calibration is neglected in a SCARA robot?
- Which consequence results when an aircraft elevator control system experiences aerodynamic flutter near the empennage?
- Which operational risk increases when a hot gas turbine engine exceeds its maximum ITT?
- Which risk increases significantly when protective CT saturation occurs within high-voltage power transformer differential protection systems?
- Which risk increases when turbocharged engine exhaust backpressure exceeds design limits?
- Which risk increases when concrete pour timing exceeds rebar's 'flash rust' passivation?