3. Use the table of values in SSLM week6, p3. Calculate the resistance of copper wire, 100m length, 1.0mm diameter a. circular cross section (in Ohms). B. Having same resistance in (a), what would be the length of aluminum made, 1.0mm diameter-circular cross section (in m)? b. If the copper wire in (a) was replaced by steel material, having the samne C. length of 100m, what is diameter of a circular cross section wire (in m)?

3. Use the table of values in SSLM week6, p3. Calculate the resistance of copper wire, 100m length, 1.0mm diameter a. circular cross section (in Ohms). B. Having same resistance in (a), what would be the length of aluminum made, 1.0mm diameter-circular cross section (in m)? b. If the copper wire in (a) was replaced by steel material, having the samne C. length of 100m, what is diameter of a circular cross section wire (in m)?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 33PE: a) Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a...

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a) Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a resistance of 77.7at 20,0°C ? (b) What is its resistance at 150°C ?
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A thermometer made of Platinum has a resistance of 50 at 20 C, what is the measured temperature (in units of C) when its resistance is 80.8 2. Assume the temperature coefficient of resistivity to be a= 3.92X10 3 c1 Select one: O A. 157.14 B. 647.34 O C. 177.14 O D. 412.24 OE. 115.54