Tesla Polyphase Induction Motors

Most AC motors are induction motors. Induction motors are favored due…

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Reluctance Motor

The variable reluctance motor is based on the principle that an…

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Wound Rotor Induction Motors

A wound rotor induction motor has a stator like a squirrel cage…

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Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…

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Intermediate Electromagnetism and Electromagnetic Induction

As an electric current is passed through a coil of wire, it creates a…

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AC Lab - Induction Motor

In this hands-on AC electronics experiment, build a simple AC permanent capacitor split-phase induction motor and learn the principles of AC induction motor function.

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What is Alternating Current (AC)?

Most students of electricity begin their study with what is known as…

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Performance-Based Assessments for AC Circuit Competencies

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AC Commutator Motors

Charles Proteus Steinmetz’s first job after arriving in America…

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AC Lab - Large Induction Motor

In this hands-on AC electronics experiment, build a large AC permanent capacitor split-phase induction motor and learn the principles of AC induction motor function.

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Other Specialized Motors

Shaded Pole Induction Motor An easy way to provide starting torque to…

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Quantum Physics

“I think it is safe to say that no one understands quantum…

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Beam Power Tubes

In the beam power tube, the basic four-element structure of the…

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Analog Lab - Voltage Comparator

In this hands-on electronics experiment, you will build an analog voltage comparator circuit and learn how open-loop operational amplifiers function.

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Ring Counters

If the output of a shift register is fed back to the input. a ring…

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Physical Effects of Electricity

Certain substances are known to physically deform (shorten or…

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R, L and C Summary

With the notable exception of calculations for power (P), all AC…

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Fuses

Normally, the ampacity rating of a conductor is a circuit design…

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Full-Adder

The half-adder is extremely useful until you want to add more than one…

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The Common-collector Amplifier

Our next transistor configuration to study is a bit simpler for gain…

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The Command-line Interface

If you’ve used DOS or UNIX operating systems before in a…

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The Silicon-Controlled Switch (SCS)

If we take the equivalent circuit of an SCR and add another external…

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Voltage-to-Current Signal Conversion

In instrumentation circuitry, DC signals are often used as analog…

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AC Lab - Build a Transformer

In this hands-on AC electronics experiment, build a simple transformer and learn some important transformer fundamentals including voltage step-up and step-down.

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Basic Electricity Worksheet

What is the purpose of the switch shown in this schematic diagram?

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Basic identities

Additive Identity a + 0 = a Multiplicative Identity 1a = a…

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Single-phase Induction Motors

A three-phase motor may be run from a single-phase power source.…

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Circuit Simplification Examples

Let’s begin with a semiconductor gate circuit in need of…

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AC Motor Theory

Electromechanical watt-hour meters use an aluminum disk that is spun…

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Slope (integrating) ADC

So far, we’ve only been able to escape the sheer volume of…

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Class A BJT Amplifiers

Don’t just sit there! Build something!! Learning to mathematically…

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