Kirchhoff's Laws and Ohm's Law
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=IR
Using Kirchhoff's Laws and Ohm's Law we can determine relationships for resistance in:
series circuits:
parallel circuits:
Determine the missing value(s) in each circuit.
Once you have completed the worksheet, determine all the unknown values of this circuit.