Given the readings taken from the circuits you built, what did you notice about the
potential differences measured in the series circuits? parallel circuits?
Kirchhoff's Voltage Laws
In a series circuit the voltage across the source is equal to the sum of the voltages
across the loads.
In a parallel circuit the voltage across parallel branches is equal.
Kirchhoff's Current Laws
What did you notice about the current measured in the series circuits? parallel circuits?
In a series circuit the current is the same at all points in the circuit.
In a parallel circuit the total current flowing into a junction is equal to the total current
flowing out.
What did you notice about the resistance measured in the series circuits? parallel
circuits?
Ohm's Law
V = I R
Using Kirchhoff's Laws and Ohm's Law we can determine relationships for resistance in:
series circuits: parallel circuits:
Kirchhoff's Laws and Ohm's Law
Determine the missing value(s) in each circuit.
Once you have completed the worksheet, determine all the unknown values of this circuit.