Answer to Question #58123 in Electric Circuits for Christbeauty

Question #58123

5 The temperature at which the tungsten filament of a 12V and 36W lamp operates is
1730oC
. If the temperature coefficient of resistance of tungsten is
6×10−3/K
, find the resistance of the lamp at a room temperature of
20oC
10.00Ω
0.45Ω
0.39Ω
4.00Ω

6 A certain resistance thermometer at triple point of water has resistance of
152.0Ω
. What is the temperature of the system in degrees Celsius when the resistance of the thermometer is
230.51Ω
?
414.2oC
141.0oC
253.2oC
80.4oC

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