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The Mathematical Expression of an AC Sine Wave As a Function of Time: Practice Problems

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Students view the mathematical expression of a sinusoidal waveform with respect to time (t) and solve five problems. The answers are provided so students may check their work.

PLC Timer Instructions

By Terry Bartelt

Learners examine the animated Timer-On Delay instruction and the Timer-Off Delay instruction of a PLC timer. A brief quiz completes the activity.

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The Transfer Function and Frequency Response of a Low Pass Filter

By Patrick Hoppe

Students learn how to predict how circuits will respond to varying frequency. They solve for the magnitude and phase angles.
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169
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Identifying Engineering Notation

By Ron Wallberg

The learner will represent very large and very small numbers in engineering notation.
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The TI-86 Calculator: The Complex Conjugate

By Patrick Hoppe

Learners view the steps to find the complex conjugate of a number in polar form using a TI-86 calculator.
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1,186
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AC Voltage Conversion Problems

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AC Voltage Conversions

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In this animated object, learners examine the formulas used to convert peak, RMS, average, and peak-to-peak AC voltages. A brief quiz completes the activity.

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Total Impedance of a Series Circuit Using Complex Numbers: Practice Problems

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Students solve six problems for series impedance using complex numbers. Immediate feedback is given.

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Total Impedance of a Parallel Circuit Using Complex Numbers: Practice Problems

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Students work six practice problems to determine the total impedance of a parallel circuit.
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Total Impedance for Series-Parallel Circuits Using Complex Numbers: Practice Problems

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Students solve five problems to determine the total impedance of a series-parallel circuit. Immediate feedback is given.
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