Question

A class of these circuit elements called transferred electron devices are used in oscillators to produce microwaves. Quantum tunneling allows a class of these devices named for Leo Esaki (10[2])(“eh-SAH-key”) to exhibit (10[1])negative resistance. Four of these (10[1])devices are arranged in a diamond shape (-5[1])in a bridge rectifier. (10[1]-5[2])These devices have an exponential I-V (“eye-vee”) relationship according to the Shockley equation. Past (10[1])the breakdown voltage, these devices can (10[1])conduct in both directions. On circuit diagrams, these devices are represented by a triangle touching a line. For 10 points, name (-5[1])these circuit elements that only let current flow in one direction and come in a “light-emitting” type. ■END■ (10[1])

ANSWER: diodes [accept light-emitting diodes or Gunn diodes or Esaki diodes; prompt on LEDs]
<Physics>
= Average correct buzz position

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Summary

2024 ACF Fall at CornellfallY978%0%44%76.00
2024 ACF Fall at Ohio StatefallY875%0%50%72.67
2024 ACF Fall at WashingtonfallY6100%0%33%74.00
2024 ACF Fall at GeorgiafallY10100%0%60%80.70
2024 ACF Fall at North CarolinafallY978%0%56%95.43
2024 ACF Fall at Claremont CollegesfallY5100%0%40%67.80
2024 ACF Fall at RutgersfallY8100%0%50%79.38
2024 ACF Fall at RutgersfallY888%0%50%72.57
2024 ACF Fall at IllinoisfallY989%0%44%49.38

Buzzes

PlayerTeamOpponentBuzz PositionValue
Ezra SantosChicago ANotre Dame B2810
Ishaan SinghPurdue BNotre Dame A2810
Davis JohnsonPurdue CPurdue A3010
Azura GollamudiNorthwestern BIllinois D3510
Ethan MaIllinois BChicago B42-5
Samay MathWashU BIllinois A46-5
Sebastian PujetWashU AIllinois C46-5
Galen SongIllinois CWashU A4610
Brielle RachIowa ASIUE5910
Daniel KozintsevIllinois AWashU B6510
Trenton BurgessIndianaIowa B86-5
Emmett ChoChicago BIllinois B10410