In this animated activity, learners examine how residual magnetism causes magnetic hysteresis.
Interpreting the Resistor Color Code
By Terry Bartelt
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.
Total Resistance in a DC Parallel Circuit
By Patrick Hoppe
In this learning activity you'll determine the total resistance in a DC parallel circuit.
Excel: Entering a Formula
In this animated learning object, users view the process of entering a formula in an Excel spreadsheet. Several different methods and associated examples are given.
This learning activity describes the abilities of an inductor coil to oppose alternating current and to pass direct current.
How Metal Detectors Operate
Learners examine how metal detectors function. This object includes animation and sound.
Transformers - A Mechanical Gear Analogy
By Roger Brown
Learners read an analogy comparing an electrical transformer to mechanical gears.
The Inductive Kick of an Inductor
In this animated activity, learners study the principle behind an inductor producing a high momentary voltage while its magnetic field collapses. A short quiz concludes the lesson.
DC/AC I: Unit 8 Sample Exam
Students answer five questions concerning magnetism.
The Magnetic Circuit
Learners compare electromagnetic quantities with the voltage, current, and resistance quantities of an electrical circuit. A brief quiz completes the object.
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