Tungsten has a temperature coefficient of resistivity of
Chapter 20, Problem 20.94(choose chapter or problem)
Tungsten has a temperature coefficient of resistivity of 0.0045 (C ) 1 . A tungsten wire is connected to a source of constant voltage via a switch. At the instant the switch is closed, the temperature of the wire is 28 C, and the initial power delivered to the wire is P0. At what wire temperature will the power that is delivered to the wire be decreased to
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