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>

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Summary

2024 ACF Fall at CornellfallY921.11100%89%22%
2024 ACF Fall at Ohio StatefallY818.75100%88%0%
2024 ACF Fall at WashingtonfallY616.67100%50%17%
2024 ACF Fall at GeorgiafallY1120.91100%73%36%
2024 ACF Fall at North CarolinafallY915.56100%56%0%
2024 ACF Fall at Claremont CollegesfallY524.00100%80%60%
2024 ACF Fall at RutgersfallY823.75100%100%38%

Data

Columbia A (UG)Bard A (UG)10101030
Columbia BRutgers B10101030
Columbia J (DII)Lehigh B (DII)10101030
Fordham AMaryland B (DII)1010020
Lehigh A (UG)Penn A (DII)1010020
Maryland A (DII)NYU B1010020
NYU A (UG)Rowan A (DII)1010020
Penn B (DII)Princeton A (UG)1010020