Series Circuits

Series Circuits


This is the third lesson in the Electrical Theory for Troubleshooters Course. The lesson presents the operation of a series circuit and trains participants in the identification of simple schematic symbols used to represent components in a series circuit. The behavior of current, resistance, and current in a series circuit, and the used of Kirchhoff’s Voltage Law to find total voltage are also covered.

Module Objectives

  • Define a series circuit.
  • Properly identify simple schematic symbols for a battery, SWITCH Learning, lamp, resistor, and conductor.
  • Describe how current and resistance behave in a series circuit.
  • Describe how voltage behaves in a series circuit.
  • Use Kirchhoff’s Voltage Law to find total voltage in a series circuit.


These lessons are excellent for the training of electricians and electronic technicians as well as for the multi-craft training needs of process and manufacturing facilities. The first four lessons in this course cover basic electrical concepts including Ohm’s Law and Kirchhoff’s Law, as well as the use of these laws to determine voltage, current, and resistance in series and parallel circuits.


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