Series Circuits
Lab: Resistance and Current in Series
Names:______________________________________________________________
Equipment for this lab - per team
| One digital multimeter | Wire nut connectors | Three 750 ohm resistors | One nine-volt battery | One breadboard |
Requirements
1.
Connect a circuit with the 3 resistors in series. Think ahead - what will
you be measuring? This may impact the space, etc you may need.
2.
Measure the resistance of each of the resistors and record the value below.
Resistor 1: ____________ Resistor 2: ____________ Resistor
3: ____________
3.
Measure the total resistance of the resistors in series and record it here:
______________
4. Using
the appropriate formula calculate what the total resistance should be and
record it here: __________________
Show your calculations below.
5.
Explain any differences in measured value from part 3 and calculated value
from part 4.
6.
Measure the voltage of the battery and provide the value here:
_________________
7.
Using the values from part 3 for measured total resistance and part 6 for
measured voltage, calculate the value of the current and place the value
here:_______________
Show your calculations below
8.
Measure the current after the first resistor and after the second resistor
and provide the values here: First: _______________
Second:
_______________
Briefly describe your approach to measuring the
current.
Are the values the same? Should they be the same?