Extech Instruments MT310 Instrukcja Użytkownika Pobierz pdf (Strona 12)

P31220 Lab Name: ________________________________

Lab Section: ________________ T.A.’s ____________________________________________

Today’s Lab Partners: ___________________________________________________________

11. Examine the data and graph for the 27Ω carbon resistor. What is the data telling you about

the behavior of the resistance of this device? Explain in as much detail as you can.

12. You measured the actual resistance of the 27Ω resistor with an ohmmeter in Experiment 1.

Compare this number to the slope of the graph. Do these two numbers agree within error?

(circle one) YES NO Please discuss.

13. Examine the data and graph for the light bulb. What is the data telling you about the

behavior of the resistance of this device? Explain in as much detail as you can.

14. Incandescent light bulbs glow when the current heats the wire filament to a high temperature.

The brighter the glow, the hotter the filament. What does your graph tell you about how the

electrical resistance of the filament changes with temperature?

15. Examine the data and graph for the diode. What is the data telling you about the behavior of

the resistance of this device? Explain in as much detail as you can.

16. What are your final thoughts and impressions about this lab?

List of graphs to turn in with your data sheets:

 V vs. L for the wire

 V vs. I for a carbon resistor

 V vs. I for a light bulb

 V vs. I for a diode

1 2 ... 7 8 9 10 11 12

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Extech Instruments MT310 Instrukcja Użytkownika Strona 12