[logo] Play-Doh: Diameter Dependence of Resistance:

Data collected by class on Sept. 26, 1996
Table corrected on Dec. 6.

Group Diam. Current Voltage Resistance Area
(cm) (mA) (V) (ohm) (cm2)
Blue Hens 0.8 24.3 5.3 218 0.50
(yellow) 0.9 15.6. 5.2 333 0.64
1.0 13.8 5.47 396 0.79
1.1 32.4 6.0 185 0.95
1.3 37.5 5.5 147 1.33
1.6 54 6.5 120 2.01
2.0 75.8 5.79 76 3.1
Blue Hens 0.8 13.7 2.9 211 0.50
(white) 0.9 13.9 5.6 403 0.64
1.0 16.5 4.26 258 0.79
1.3 28.6 5.1 178 1.33
1.6 42.4 5.6 132 2.01
2.0 61.2 4.93 80 3.1
Purple Umbrella 0.8 11.2 7.1 633 0.50
(blue) 1.0 23.2 5.3 238 0.79
1.3 24.7 6.3 255 1.33
2.0 77.0 5.5 71 3.1
Purple Umbrella 0.8 16.2 6.3 389 0.50
(red) 1.0 20.7 5.7 275 0.79
1.3 41.0 6.1 149 1.33
2.0 80.7 4.7 58 3.1

"http://www.physics.udel.edu/~watson/scen103/playdo0n.html"
Last updated Oct. 1, 1996.
Copyright George Watson, Univ. of Delaware, 1996.