Complex Power: The Sum of the Individual Real and Reactive Powers
By Patrick Hoppe
The learner views a method to find the total complex power of a circuit in which the individual real and reactive powers are found and then added together. Several examples are shown, along with the power triangles.
Conductors, Insulators and Resistors
By Terry Bartelt
In this animated activity, learners examine why various materials are conductors, insulators, or resistors of current. A short quiz completes the learning object.
Converting Values in Engineering Notation
By Ron Wallberg
The learner will convert various values to engineering notation.
Current and Voltage Parameters of Digital Circuitry (Screencast)
In this interactive learning object, students read about the voltage and current parameters commonly found on a data sheet. A brief quiz completes the activity.
Current Divider Rule (CDR)
Students review the Current Divider Rule (CDR) and work practice problems.
Current Divider Rule Practice Problems
In this interactive object, learners review the CDR and work nine problems. Immediate feedback is given.
Current in a Series Circuit
In this learning activity you'll determine what happens to current flow in a series circuit when the resistance is changed.
Current Source Approximations
Learners examine first and second approximations and view examples of a "stiff" current source.
DC Circuit Analysis: The Series Circuit
Learners examine a general approach to solving for the current through, the voltage across, and the power dissipated by each resistor in a series DC circuit. A three-resistor series circuit is used as an example.
DC Current Flow Through a Parallel Circuit
Learners observe current flow throughout the series portion and branches of a parallel circuit. This animated activity includes calculations and a short quiz.
DC/AC I: Unit 10 Sample Exam
Learners answer eight questions about capacitors. Help pages are available.
DC/AC I: Unit 11 Sample Exam
Learners answer six questions about transformers.
DC/AC I: Unit 12 Sample Exam
A sample exam for DC/AC I, unit # 12 is presented to the students. This unit covers transformers.
DC/AC I: Unit 2 Sample Exam
In this interactive object, learners work 10 problems covering resistors, voltage, and current.
DC/AC I: Unit 3 Sample Exam
In this interactive object, students answer 10 questions covering Ohm's Law and Power Law.
DC/AC I: Unit 4 Sample Exam
In this interactive object, learners answer nine questions about series and parallel circuits. Immediate feedback is provided.
DC/AC I: Unit 5 Sample Exam
Learners answer 14 questions about series-parallel DC circuits.
DC/AC I: Unit 8 Sample Exam
Students answer five questions concerning magnetism.
DC/AC I: Unit 9 Sample Exam
In this interactive object, learners answer nine questions about inductors.
DC/AC: Unit 1 Sample Exam
In this interactive object, learners work 11 problems covering atomic structure, conductors, and insulators.
De-Energizing Time Constants of an RL Circuit
In this animated learning object, students examine current, voltage, and the magnetic field strength of a series RL circuit while it is de-energizing during five time constants. A quiz completes the activity.
Demultiplexers (Screencast)
In this animated object, learners examine the operation of a demultiplexer along with the data output and select lines. A brief quiz completes the activity.
Deriving the Formulas of the Power Wheel
Use Ohm's law, Watt's law, and the power equation to derive formulas for the DC power wheel.
Designing a Ladder Diagram
By Terry Bartelt, Terry Fleischman
In this animated object, learners examine the design of a ladder circuit that provides manual control to a water pumping system. Students also study modifications to the circuit as the complexity of the system increases.
Development of a Boolean Expression for a Combinational Logic Circuit
Learners view an animated demonstration of how to determine the final output of the combinational circuit.