Question
A three terminal potentiometer with an unconnected terminal is a common rheostat used to vary this quantity. For 10 points each:
[10m] Name this quantity whose value for some components is indicated by four colored bands.
ANSWER: electrical resistance
[10e] Resistance equals voltage divided by current by a law named after this German physicist, who also gives his name to the SI unit of resistance.
ANSWER: Georg Ohm [accept Ohm’s law; accept ohms]
[10h] The strength of an unknown resistor is calculated using one of these circuits. Three resistors of known strength and the unknown resistor are placed in a diamond shape in these circuits.
ANSWER: Wheatstone bridges [prompt on Wheatstone; prompt on bridges; prompt on Wheatstone circuits]
<Physics>
Summary
| 2024 ACF Fall at Cornell | fall | Y | 9 | 21.11 | 100% | 89% | 22% |
| 2024 ACF Fall at Ohio State | fall | Y | 8 | 18.75 | 100% | 88% | 0% |
| 2024 ACF Fall at Washington | fall | Y | 6 | 16.67 | 100% | 50% | 17% |
| 2024 ACF Fall at Georgia | fall | Y | 11 | 20.91 | 100% | 73% | 36% |
| 2024 ACF Fall at North Carolina | fall | Y | 9 | 15.56 | 100% | 56% | 0% |
| 2024 ACF Fall at Claremont Colleges | fall | Y | 5 | 24.00 | 100% | 80% | 60% |
| 2024 ACF Fall at Rutgers | fall | Y | 8 | 23.75 | 100% | 100% | 38% |
Data
| VCU | Appalachian State B | 10 | 10 | 0 | 20 |
| UNC B | Duke A | 0 | 10 | 0 | 10 |
| James Madison B | UNC D | 0 | 10 | 0 | 10 |
| Virginia Tech A | Liberty A | 10 | 10 | 0 | 20 |
| Tusculum | Liberty C | 10 | 10 | 0 | 20 |
| NC State | Virginia Tech B | 10 | 10 | 0 | 20 |
| UNC A | Duke B | 10 | 10 | 0 | 20 |
| Appalachian State A | UNC C | 0 | 10 | 0 | 10 |
| William & Mary | Virginia | 0 | 10 | 0 | 10 |