Extech Instruments MT310 Instrukcja Użytkownika Pobierz pdf (Strona 9)

P31220 Lab Name: ________________________________

Lab Section: ________________ T.A.’s ____________________________________________

Today’s Lab Partners: ___________________________________________________________

Data and Analysis Questions for Experiment 2:

6. Examine your data. Compare the measured voltage across the power supply with the sum of

the measured voltages across the resistor and the entire length of the wire (points a to e).

What can you conclude?

7. Consider your data for the wire only. Graph the voltage vs. length of the wire. Include 2%

error bars for the voltages, and 2 mm error bars for the lengths. Do a linear fit to your data.

What can you conclude about the relationships between the measured resistances, the length

of the wire, and the measured voltages along the wire?

Voltage

measured

across

Length (cm)

Nominal

resistance

(ohms)

Measured

resistance

(ohms)

Measured

voltage

(Volts)

Power

supply

Resistor

27Ω

a to b

a to c

a to d

a to e

1 2 3 4 5 6 7 8 9 10 11 12

Brak uwag

Extech Instruments MT310 Instrukcja Użytkownika Strona 9