electrical resistance - 2024 ACF Fall at Claremont Colleges

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]

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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


UCLA C	Claremont C	10	10	10	30
UCLA A	UCLA E	10	10	0	20
UCLA B	Claremont A	0	10	0	10
UCSD	UCLA D	10	10	10	30
USC	Claremont B	10	10	10	30