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 (“eh-SAH-key”) to exhibit negative resistance. Four of these devices (-5[1])are arranged in a diamond shape in a bridge rectifier. (10[2]-5[1])These devices (10[1])have an exponential (-5[1])I-V (“eye-vee”) relationship according to the Shockley equation. (-5[1])Past the breakdown voltage, these devices can conduct in both directions. On circuit diagrams, these devices are represented by a triangle touching (10[1])a line. For 10 points, name these circuit elements that only let current flow in one direction and come in a “light-emitting” type. ■END■ (10[3]0[2])

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
Brian HoffCornell BPenn State36-5
Anna KuangCornell ECornell C4610
Alec RisoCornell DSyracuse4610
Elijah O'Sick JohnsonBinghamton CU of Rochester B46-5
Danny CutbillRIT ARIT C4810
Jonathan ZhangCornell FCornell A51-5
Brian ChenCornell GBinghamton B58-5
Quinn VaughenRIT BBinghamton A8010
Victor BenderPenn StateCornell B10410
Kritanu SahaCornell ACornell F1040
Bianca Van ZileBinghamton BCornell G1040
Aidan KeenanU of Rochester AESF10410
Sammy CarstensU of Rochester BBinghamton C10410