Learners follow the steps for reducing all of the elements of a complex circuit to a single current source and a single source resistance to create a simple circuit. Several examples are given for dc circuits. The conversion between Thevenin and Norton is also presented.
The superposition theorem is explained as it relates to dc circuit analysis. Examples are given.
Students review the Voltage Divider Rule and work practice problems.
In this learning activity you'll identify abbreviations that represent quantities associated with electrical circuits.
The learner studies how electrons travel from one atom to the next. Examples demonstrate how voltage is created by the use of a battery or through magnetism. A quiz completes the activity.
Learners follow a methodical approach for the dc analysis of series-parallel circuits.
The learner will apply the three formulas used to find the total resistance of three types of parallel resistor circuit configurations.
Learners observe current flow throughout the series portion and branches of a parallel circuit. This animated activity includes calculations and a short quiz.
Students complete a sample exam for DC/AC I. It provides an overview of the material presented in the course.
Students examine how to interpret resistor color code bands to determine resistance values and tolerance ranges. This interactive learning object has audio content and includes exercises.
Students work five practice problems to determine the Thevenin voltage of DC circuits.
In this learning activity you'll determine what happens to current flow in a series circuit when the resistance is changed.
Students review the Current Divider Rule (CDR) and work practice problems.
In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.
In this animated activity, learners examine why various materials are conductors, insulators, or resistors of current. A short quiz completes the learning object.
In this animated lesson, students view the operation of an electromechanical relay. A brief quiz concludes the activity.
In this learning activity you'll explore Kirchhoff's Current Law and view examples of its application.
Students complete 10 practice problems.
In this animated object, learners examine how the way in which a rheostat is connected in series with other resistors causes current and voltage to change as the resistance is varied. A brief quiz completes the activity.
In this animated activity, students view a step-by-step approach of how to connect an ammeter to a circuit. A brief quiz concludes the lesson.
Learners are introduced to primary and secondary batteries. Examples are given.
In this learning activity you'll build a resistor's color code based on the bands.
This learning activity uses a water pressure analogy to present the concept that voltage pressure is required to cause current flow.
Students work five practice problems to determine the Thevenin resistance of DC circuits.
Students view the parts and movements of a combustion engine in this animated activity. Each part is described.