DC Fundamentals Unit 7 – Series Resistive Circuits
Unit 7 – Series Resistive Circuits ................................................................................................
UNIT OBJECTIVE
At the completion of this unit, you will be able to determine the values of resistance, current, and
voltage in a series resistive circuit by using Ohm's law.
UNIT FUNDAMENTALS
A series circuit is one in which circuit components, such as resistors, are connected end-to-end to
form a complete path from the voltage source, through the resistors, and back to the voltage
source.
We call this a series circuit because the components are connected one after another, and there is
only one path for current as it runs through all the parts of the circuit.
Resistance in series circuits is cumulative. The total resistance equals the sum of the circuit
resistances.
RT = R1 + R2 + R3