When resistors are connected head-to-tail we say they are in series. The equivalent overall series resistance is the sum of the individual resistance values.

Created by Willy McAllister.

• Calculate the series equivalent resistor for the three resistors.
• Find the resulting current using Ohm’s Law.
• Find the element voltage across each resistor.
• Find the node voltage at each node (the voltage with respect to the ground node).
• Click on DC to simulate the circuit. The simulator shows you the node voltages.
• Challenge: Change any resistor values to get 1.00V at the top of R2.