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.

Series resistor simulation model.

  • 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.