1. What is the resistance of a copper conductor at 68 °C if its resistance at 20 °C is 6.160?

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Answer and write the observation about the problems.

Temperature - Resistance Effect - Experiment 2
APPLICATION: Use separate bond paper (8.5" x 11").
1. What is the resistance of a copper conductor at 68 °C if its resistance at 20 °C
is 6.160?
2. The resistance of a copper is 150 n at 20 °C. By how much should it be
exposed to temperature if it is resistance should not exceed to 151.5 ohms?
3. An incandescent lamp with a tungsten filament has 101-0 resistance under its
operating temperature at 3000 °C. Calculate the filament resistance when the
lamp is disconnected from the electric source and decreased its temperature
to 28°C.
Based on the result of the laboratory activity, write (or construct) a conclusion on the result
of experiment.
13
Transcribed Image Text:Temperature - Resistance Effect - Experiment 2 APPLICATION: Use separate bond paper (8.5" x 11"). 1. What is the resistance of a copper conductor at 68 °C if its resistance at 20 °C is 6.160? 2. The resistance of a copper is 150 n at 20 °C. By how much should it be exposed to temperature if it is resistance should not exceed to 151.5 ohms? 3. An incandescent lamp with a tungsten filament has 101-0 resistance under its operating temperature at 3000 °C. Calculate the filament resistance when the lamp is disconnected from the electric source and decreased its temperature to 28°C. Based on the result of the laboratory activity, write (or construct) a conclusion on the result of experiment. 13
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