College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Textbook Question
Chapter 20, 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 resistance of 77.7Ωat 20,0°C ? (b) What is its resistance at 150°C ?
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(a) Of what material is a wire made, if it is 20.0 m long with a 0.150 mm diameter and has a resistance of 18.0 N at
20.0°C?
O lead
О соррer
O aluminum
O silver
(b) What is its resistance (in Q) at 130°C?
18.04
(a)
Of what material is a wire made, if it is 20.0 m long with a 0.150 mm diameter and has a resistance of 18.0 N at
20.0°C?
O lead
copper
O aluminum
O silver
(b) What is its resistance (in 2) at 130°C?
What is the resistance of a wire made of a material with a resistivity of 3.2 x 10 -8 if its length is 2.5 m and its diameter is 0.50 mm?
Chapter 20 Solutions
College Physics
Ch. 20 - Can a wire carry a current and still be...Ch. 20 - Car batteries are rated in ampere-hours (A h )....Ch. 20 - If two different wires having identical...Ch. 20 - Why are two conducting paths from a voltage source...Ch. 20 - In cars, one battery terminal is connected to the...Ch. 20 - Why isn't a bird sitting on a high-voltage power...Ch. 20 - The IR drop across a resistor means that there is...Ch. 20 - How is the I R drop in a resistor similar to the...Ch. 20 - In which of the three semiconducting materials...Ch. 20 - Does the resistance of an object depend on the...
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