Physics for Scientists and Engineers With Modern Physics
9th Edition
ISBN: 9781133953982
Author: SERWAY, Raymond A./
Publisher: Cengage Learning
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Chapter 27, Problem 73AP
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The resistivity of gold at room temperature is 2.35 x 10-8 ohm-m. The temperature coefficient alpha = 3.98 x 10-3/K. What will be the resistivity of a piece of gold whose temperature is 150°C above room temperature?
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Chapter 27 Solutions
Physics for Scientists and Engineers With Modern Physics
Ch. 27.1 - Consider positive and negative charges of equal...Ch. 27.2 - Prob. 27.2QQCh. 27.2 - Prob. 27.3QQCh. 27.4 - When does an incandescent lightbulb carry more...Ch. 27.6 - Prob. 27.5QQCh. 27 - Prob. 1OQCh. 27 - Prob. 2OQCh. 27 - Prob. 3OQCh. 27 - Prob. 4OQCh. 27 - Prob. 5OQ
Ch. 27 - Prob. 6OQCh. 27 - Prob. 7OQCh. 27 - Prob. 8OQCh. 27 - Prob. 9OQCh. 27 - Prob. 10OQCh. 27 - Prob. 11OQCh. 27 - Prob. 12OQCh. 27 - Prob. 13OQCh. 27 - Prob. 1CQCh. 27 - Prob. 2CQCh. 27 - Prob. 3CQCh. 27 - Prob. 4CQCh. 27 - Prob. 5CQCh. 27 - Prob. 6CQCh. 27 - Prob. 7CQCh. 27 - Prob. 8CQCh. 27 - Prob. 1PCh. 27 - A small sphere that carries a charge q is whirled...Ch. 27 - Prob. 3PCh. 27 - Prob. 4PCh. 27 - Prob. 5PCh. 27 - Prob. 6PCh. 27 - Prob. 7PCh. 27 - Prob. 8PCh. 27 - The quantity of charge q (in coulombs) that has...Ch. 27 - Prob. 10PCh. 27 - Prob. 11PCh. 27 - Prob. 12PCh. 27 - Prob. 13PCh. 27 - Prob. 14PCh. 27 - A wire 50.0 m long and 2.00 mm in diameter is...Ch. 27 - A 0.900-V potential difference is maintained...Ch. 27 - Prob. 17PCh. 27 - Prob. 18PCh. 27 - Prob. 19PCh. 27 - Prob. 20PCh. 27 - Prob. 21PCh. 27 - Prob. 22PCh. 27 - Prob. 23PCh. 27 - Prob. 24PCh. 27 - Prob. 25PCh. 27 - Prob. 26PCh. 27 - Prob. 27PCh. 27 - While taking photographs in Death Valley on a day...Ch. 27 - Prob. 29PCh. 27 - Prob. 30PCh. 27 - Prob. 31PCh. 27 - Prob. 32PCh. 27 - Prob. 33PCh. 27 - Prob. 34PCh. 27 - At what temperature will aluminum have a...Ch. 27 - Assume that global lightning on the Earth...Ch. 27 - Prob. 37PCh. 27 - Prob. 38PCh. 27 - Prob. 39PCh. 27 - The potential difference across a resting neuron...Ch. 27 - Prob. 41PCh. 27 - Prob. 42PCh. 27 - Prob. 43PCh. 27 - Prob. 44PCh. 27 - Prob. 45PCh. 27 - Prob. 46PCh. 27 - Prob. 47PCh. 27 - Prob. 48PCh. 27 - Prob. 49PCh. 27 - Prob. 50PCh. 27 - Prob. 51PCh. 27 - Prob. 52PCh. 27 - Prob. 53PCh. 27 - Prob. 54PCh. 27 - Prob. 55PCh. 27 - Prob. 56PCh. 27 - Prob. 57APCh. 27 - Prob. 58APCh. 27 - Prob. 59APCh. 27 - Prob. 60APCh. 27 - Prob. 61APCh. 27 - Prob. 62APCh. 27 - Prob. 63APCh. 27 - Review. An office worker uses an immersion heater...Ch. 27 - Prob. 65APCh. 27 - Prob. 66APCh. 27 - Prob. 67APCh. 27 - Prob. 68APCh. 27 - Prob. 69APCh. 27 - Prob. 70APCh. 27 - Prob. 71APCh. 27 - Prob. 72APCh. 27 - Prob. 73APCh. 27 - Prob. 74APCh. 27 - Prob. 75APCh. 27 - Prob. 76APCh. 27 - Review. A parallel-plate capacitor consists of...Ch. 27 - The dielectric material between the plates of a...Ch. 27 - Prob. 79APCh. 27 - Prob. 80APCh. 27 - Prob. 81APCh. 27 - Prob. 82CPCh. 27 - Prob. 83CPCh. 27 - Material with uniform resistivity is formed into...Ch. 27 - Prob. 85CP
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- A tungsten wire is used to determine the melting point of indium. The resistance of the tungsten wire is 2.788 at 20.0°C and increases to 5.636 as the indium starts to melt. αtungsten = 4.50 x 10−3 (°C)−1. What is the melting temperature of indium in °C?arrow_forwardQ1: A conductive wire has a resistivity of (0.649x10-8(Q.m)') at room temperature are (5.8x10* ) conduction electron/m3.Calculate the mobility, resistivity and relaxation time of electrons.arrow_forwardProblem 3: A 1.2 g wire has a density of 2.7 g/cm3 and a resistivity of 2.7 × 10−8 Ωm. The wire has a resistance of 15 Ω. a) How long is the wire? b) The wire is made up of atoms with valence 1 and molar mass 26.98 g/mol. What is the drift speed of the electrons when there is a voltage drop of 30 V across the wire?arrow_forward
- Q*: Calculate the drift velocity and mean free path of copper when it carries a steady current of 10 amperes and whose radius is 0.08 cm. Assume that the mean thermal velocity 1.6 x 10° m/s and the resistivity of copper 2 x 10 marrow_forwardThe resistivity of a metal increases slightly with increased temperature. This can be expressed as p=po [1+ a(T-To)], where To is a reference temperature, usually 20°C, and a is the temperature coefficient of resistivity. For copper, a=3.9x 10-3 °C-1. Suppose a long, thin copper wire has a resistance of 0.25 at 20°C. Part A At what temperature, in °C, will its resistance be 0.25 ? T= Submit 5 ΑΣΦ V Request Answer ? °Carrow_forwardThe resistivity of pure germanium = 600 x 10-³ Nm. Calculate the resistance of a cylinder of pure germanium with a radius of 1.5 mm and a length 7.0 mm. Note the units of millimeters. R= How long would a cylinder of this radius need to be in order for the resistance of pure germanium to be equal to 2250 ohms? L= mmarrow_forward
- A student performs an experiment to determine the resistance of a resistor. She takes voltage versus current data and plots a graph of the data set. She calculates the slope of the best line to be 15.2 N and the slope of the worst line to be 14.2 N. Which statement below expresses correctly the value of the resistance and its uncertainty (i.e. error)? Select one: (14 ±1.1) N (15 ± 1) N (15.2 ± 1.0) N (14.2±1.0) Narrow_forwardA tungsten wire has a radius of 0.098 mm and is heated from 20.0 to 1333 oC. The temperature coefficient of resistivity is α = 4.5 × 10-3 (Co)-1. When 170 V is applied across the ends of the hot wire, a current of 1.9 A is produced. How long is the wire? Neglect any effects due to thermal expansion of the wire. I will rate. solve correctly.arrow_forwardPlease don't provide handwritten solution ....arrow_forward
- 2. a) The resistivity of copper is 1.7241 x 10-8 (22-m) at 20°C. What is the conductivity of copper at 27°C in units of (0-m)-¹ and (0-cm)-1 if the temperature coefficient of resistivity of copper is 3.9 x 10-³/°C? b) Explain the change of conductivity with temperature. 2 For carbon: - 35 x 10-50-m and g --50 x 10-4 1°Carrow_forwardA platinum resistance thermometer (PRT) is a transducer which measures temperature 0 by means of consequent change of electrical resistance RT between its two terminals. Such a PRT has the following quadratic characteristic: RT=Ro [1+A0+BO^2] The PRT is calibrated so that its resistance is Ro = 100 Q at a reference temperature of 0 = 0°C. The coefficients have the following values: A = +4.0 x 10-3 °C-1 B = -5.0 x 10-6 oc-2 Determine sensitivity of this transducer at temperatures of +50 °C. Select one: O a. 0.45 Q/°C Ob. -0.45 Q/°C -0.35 Ω/ΟC d. 0.4 0/°C O e. 0.35 Q/°C O f. -0.4 0/PCarrow_forwardA more general definition of the temperature coefficient of resistivity is α =1ρ|dρdT|where ρ is the resistivity at temperature T. (a) Assuming α is constant, show that ρ = ρ0eα(T−T0) where ρ0 is the resistivity at temperature T0. (b) Using the series expansion ex ≈ 1 + x for x << 1, show that the resistivity is given approximately by the expression ρ = ρ0[1 + α(T − T0)] for α(T − T0) ≪ 1arrow_forward
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