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Resistivity (A-m) 2.65 x 10 Material Aluminum Соpper Gold Iron | 1.68 x 10 244 x 10 9.71 x 10 Platinum 10.6 x 108 Silver Tungsten | 1.59 x 10 5.60 x 108 O Problem As shown below, an insulated silver wire is immersed in 748 g of water at 27 "C. The wire is 2.7 cm long and has a cross-sectional area of 0.002 cm?. A.) Determine how much heat is needed to bring the water to a boil. The specific heat of water is 4186 J/kg-K. Q =[ wire B.) Determine how long it will take to bring the water to a boil if a 18 A current is run through the wire. Assume all the thermal energy generated by the wire is absorbed by the water. At=

Resistivity (A-m) 2.65 x 10 Material Aluminum Соpper Gold Iron | 1.68 x 10 244 x 10 9.71 x 10 Platinum 10.6 x 108 Silver Tungsten | 1.59 x 10 5.60 x 108 O Problem As shown below, an insulated silver wire is immersed in 748 g of water at 27 "C. The wire is 2.7 cm long and has a cross-sectional area of 0.002 cm?. A.) Determine how much heat is needed to bring the water to a boil. The specific heat of water is 4186 J/kg-K. Q =[ wire B.) Determine how long it will take to bring the water to a boil if a 18 A current is run through the wire. Assume all the thermal energy generated by the wire is absorbed by the water. At=

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Resistivity (N'm) Material Aluminum 2.65 x 10-8 Copper 1.68 x 10-8 Gold 2.44 x 10-8 Iron 9.71 x 10-8 Platinum 10.6 x 10-8 Silver 1.59 x 10-8 Tungsten 5.60 x 10-8 A Problem As shown below, an insulated silver wire is immersed in 748 g of water at 27 °C. The wire is 2.7 cm long and has a cross-sectional area of 0.002 cm?. A.) Determine how much heat is needed to bring the water to a boil. The specific heat of water is 4186 J/kg•K. Q = B.) Determine how long it will take to bring the water to a boil if a 18 A current is run through the wire. Assume all the thermal energy generated by the wire is absorbed by the water. At = wire
Transcribed Image Text:Resistivity (N'm) Material Aluminum 2.65 x 10-8 Copper 1.68 x 10-8 Gold 2.44 x 10-8 Iron 9.71 x 10-8 Platinum 10.6 x 10-8 Silver 1.59 x 10-8 Tungsten 5.60 x 10-8 A Problem As shown below, an insulated silver wire is immersed in 748 g of water at 27 °C. The wire is 2.7 cm long and has a cross-sectional area of 0.002 cm?. A.) Determine how much heat is needed to bring the water to a boil. The specific heat of water is 4186 J/kg•K. Q = B.) Determine how long it will take to bring the water to a boil if a 18 A current is run through the wire. Assume all the thermal energy generated by the wire is absorbed by the water. At = wire
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