In this interactive object, students calculate inductive reactance, impedance, current, and power in parallel RL circuits.
The DC Motor
By Terry Bartelt
Learners examine the wiring of the primary components of the three types of DC motors, series, shunt, and compound. The operational characteristics of each type of motor are described. A quiz completes the activity.
Transistor DC Analysis Practice Problems: Circuit #2
By Patrick Hoppe
Learners analyze a base-biased npn transistor circuit. A "help" screen is available.
The Multi-Loop Armature of a DC Motor
In this animated object, learners study the drawbacks of a single-loop armature of a DC motor and the advantages of a multi-loop armature.
You'll explore advanced microprocessor concepts.
The Vertical Portion of the Sine Wave
In this animated lesson, learners examine sine waves and alternating current. A brief quiz completes the object.
The Horizontal Portion of the Sine Wave
In this animated object, learners examine cycles, frequency, Hertz, wavelengths, and periods. A brief quiz completes the activity.
Series-Parallel Practice Problems Circuit 4
In this interactive object, learners work 12 problems dealing with dc circuit analysis.
Basic Types of Lines Used in Engineering Drawings
By Kelly Curran, Glenn Sokolowski
In this highly interactive object, learners associate basic line types and terms with engineering drawing geometry. A quiz completes the activity.
Basic Symbols Used in Engineering Drawings
Learners examine the drawing symbols used for counterbore, countersink, spotface, radius, diameter, and depth. In the quiz that completes the activity, they associate these symbols with machining applications.
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