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 are arranged in a diamond shape in a bridge rectifier. These devices have an exponential I-V (“eye-vee”) relationship according to the Shockley equation. Past the breakdown voltage, these devices can conduct in both directions. On circuit diagrams, these devices are represented by a triangle touching 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■
ANSWER: diodes [accept light-emitting diodes or Gunn diodes or Esaki diodes; prompt on LEDs]
<Physics>
= Average correct buzz position
Summary
2024 ACF Fall at Cornell | fall | Y | 9 | 78% | 0% | 44% | 76.00 |
2024 ACF Fall at Ohio State | fall | Y | 8 | 75% | 0% | 50% | 72.67 |
2024 ACF Fall at Washington | fall | Y | 6 | 100% | 0% | 33% | 74.00 |
2024 ACF Fall at Georgia | fall | Y | 10 | 100% | 0% | 60% | 80.70 |
2024 ACF Fall at North Carolina | fall | Y | 9 | 78% | 0% | 56% | 95.43 |
2024 ACF Fall at Claremont Colleges | fall | Y | 5 | 100% | 0% | 40% | 67.80 |
2024 ACF Fall at Rutgers | fall | Y | 8 | 100% | 0% | 50% | 79.38 |
2024 ACF Fall at Rutgers | fall | Y | 8 | 88% | 0% | 50% | 72.57 |
2024 ACF Fall at Illinois | fall | Y | 9 | 89% | 0% | 44% | 49.38 |
Buzzes
Player | Team | Opponent | Buzz Position | Value |
---|---|---|---|---|
Ezra Santos | Chicago A | Notre Dame B | 28 | 10 |
Ishaan Singh | Purdue B | Notre Dame A | 28 | 10 |
Davis Johnson | Purdue C | Purdue A | 30 | 10 |
Azura Gollamudi | Northwestern B | Illinois D | 35 | 10 |
Ethan Ma | Illinois B | Chicago B | 42 | -5 |
Samay Math | WashU B | Illinois A | 46 | -5 |
Sebastian Pujet | WashU A | Illinois C | 46 | -5 |
Galen Song | Illinois C | WashU A | 46 | 10 |
Brielle Rach | Iowa A | SIUE | 59 | 10 |
Daniel Kozintsev | Illinois A | WashU B | 65 | 10 |
Trenton Burgess | Indiana | Iowa B | 86 | -5 |
Emmett Cho | Chicago B | Illinois B | 104 | 10 |