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 |
---|---|---|---|---|
Brian Hoff | Cornell B | Penn State | 36 | -5 |
Anna Kuang | Cornell E | Cornell C | 46 | 10 |
Alec Riso | Cornell D | Syracuse | 46 | 10 |
Elijah O'Sick Johnson | Binghamton C | U of Rochester B | 46 | -5 |
Danny Cutbill | RIT A | RIT C | 48 | 10 |
Jonathan Zhang | Cornell F | Cornell A | 51 | -5 |
Brian Chen | Cornell G | Binghamton B | 58 | -5 |
Quinn Vaughen | RIT B | Binghamton A | 80 | 10 |
Victor Bender | Penn State | Cornell B | 104 | 10 |
Kritanu Saha | Cornell A | Cornell F | 104 | 0 |
Bianca Van Zile | Binghamton B | Cornell G | 104 | 0 |
Aidan Keenan | U of Rochester A | ESF | 104 | 10 |
Sammy Carstens | U of Rochester B | Binghamton C | 104 | 10 |