In this interactive object, students calculate inductive reactance, impedance, current, and power in parallel RL circuits.
Power Factor: A Mechanical Work Analogy
By Roger Brown
Learners read an analogy comparing mechanical work (in this case, sliding a weight) to that of electrical power. The relationship of work, apparent work, and power factor is developed.
Parallel Circuit Analysis Practice Problems: Circuit #9
By Patrick Hoppe
In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.
Pressure-Reducing Valve Application
By Terry Bartelt, Stephen Schneider
In this animated activity, a drill-and-clamp machine is used to show an application of a pressure-reducing valve. Recommendations on how to properly make pressure adjustments are also provided.
Transistor AC Analysis Practice Problems: Circuit #1
The learner solves for Zin(base), Zin(stage), Zout, and Av. A "help" screen is available.
The Vertical Portion of the Sine Wave
By Terry Bartelt
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.
Abbreviations Representing Electrical Quantities
In this learning activity you'll identify abbreviations that represent quantities associated with electrical circuits.
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.
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