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Physics, 31.01.2020 08:45 ayoismeisalex
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 21 °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 2/3 p0?
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Tungsten has a temperature coefficient of resistivity of 0.0045 (c°)-1. a tungsten wire is connected...
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