A professor gives an undergraduate assistant a summer job organizing her lab. first day, the assistant comes across three identically shaped cylinders of metal having a diameter of 8.55 mm and a length of 4.51 cm. They appear to be mad different metals, but they are not labeled. They are, however, packaged with at conductivities of several metals. The assistant locates a multimeter and uses it

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter1: Introduction And Vectors
Section: Chapter Questions
Problem 53P
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A professor gives an undergraduate assistant a summer job organizing her lab. On the
o (Q-m)-
Metal
first day, the assistant comes across three identically shaped cylinders of metal, each
silver
6.30 x 107
having a diameter of 8.55 mm and a length of 4.51 cm. They appear to be made out of
different metals, but they are not labeled. They are, however, packaged with a table of the
copper
5.69 x 107
aluminum
3.50 x 107
conductivities of several metals. The assistant locates a multimeter and uses it to measure
the electrical resistance of each cylinder.
tungsten
1.82 x 107
tin
8.70 x 10
Using the measured resistances and the table of conductivities, identify the metal that
each cylinder is composed of.
titanium
1.80 x 10
Sample 1:
Rj = 436 µs2
Answer Bank
Sample 2:
R2 = 13.8 µ2
titanium
copper
tin
aluminum
silver
tungsten
Sample 3:
R3 = 90.3 µ2
Transcribed Image Text:A professor gives an undergraduate assistant a summer job organizing her lab. On the o (Q-m)- Metal first day, the assistant comes across three identically shaped cylinders of metal, each silver 6.30 x 107 having a diameter of 8.55 mm and a length of 4.51 cm. They appear to be made out of different metals, but they are not labeled. They are, however, packaged with a table of the copper 5.69 x 107 aluminum 3.50 x 107 conductivities of several metals. The assistant locates a multimeter and uses it to measure the electrical resistance of each cylinder. tungsten 1.82 x 107 tin 8.70 x 10 Using the measured resistances and the table of conductivities, identify the metal that each cylinder is composed of. titanium 1.80 x 10 Sample 1: Rj = 436 µs2 Answer Bank Sample 2: R2 = 13.8 µ2 titanium copper tin aluminum silver tungsten Sample 3: R3 = 90.3 µ2
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