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AC Motor Control Circuits

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Perhaps the most challenging aspect of interpreting ladder diagrams,…

Ohm’s Law Practice Worksheet With Answers

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Define the following terms: energy, work, and power.

Soldering

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Both soldering irons and soldering guns are tools used in the process…

Temperature Coefficients of Resistance Table

Textbook

Temperature coefficient (α) per degree C: Material Element/Alloy…

Temperature Coefficient of Resistance

Textbook

You might have noticed on the table for specific resistances that all…

Resistors

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Shown here is the schematic symbol for a resistor: What is the purpose…

Heat Sink Calculator

Tools

This calculator helps determine the maximum temperature a device can withstand

Noise Figure and Noise Temperature Calculator

Tools

This calculator computes the noise figure and noise temperature in a system

Open-Loop OpAmp Circuits

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Determine what the magnitude and polarity of the voltmeter’s…

Algebraic Equation Manipulation for Electric Circuits

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The electrical resistance of a conductor at any temperature may be…

Temperature Coefficient of Resistance

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It is a common phenomenon for the electrical resistance of a substance…

Temperature Converter

Tools

Convert between Celsius, Fahrenheit and Kelvin

Batteries

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If I wanted to build a battery-powered electric drill, would it be…

Electrical Conduction in Semiconductors

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In any electrically conductive substance, what are charge carriers?…

AC Voltmeters and Ammeters

Textbook

AC electromechanical meter movements come in two basic arrangements:…

Time Constant Equations

Textbook

Value of time constant in series RC and RL circuits   Time…

Class C BJT Amplifiers

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A common class of operation used in radio-frequency (RF) amplifier…

Measurements of AC Magnitude

Textbook

So far we know that AC voltage alternates in polarity and AC current…

BJT Amplifier Troubleshooting

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As an instructor of electronics, I am called upon frequently to help…

RMS Voltage Calculator

Tools

This calculator calculates the RMS Voltage value from either the peak voltage, the peak-to-peak voltage, or the average voltage.

Broadside Coupled Trace Inductance Calculator

Tools

This calculator helps you compute the inductance of a broadside coupled trace.

Common-Emitter Amplifier

Textbook

PARTS AND MATERIALS One NPN transistor—model 2N2222 or 2N3403…

Conductors, Insulators, and Electron Flow

Textbook

The electrons of different types of atoms have different degrees of…

CMOS 555 Long Duration Flyback LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Mutual Inductance

Worksheets - Fans

When an electric current is passed through a coil of wire, what…

Finite State Machines

Textbook

Up to now, every circuit that was presented was a combinatorial…

Circuits and the Speed of Light

Textbook

Suppose we had a simple one-battery, one-lamp circuit controlled by a…

Clamper Circuits

Textbook

The circuits in the figure below are known as clampers or DC…

Systems of Numeration

Textbook

Roman Numerals The Romans devised a system that was a substantial…

Factoring Equivalencies

Textbook

Factoring Identities :   a2 - b2 = (a + b) (a - b) a2 + 2ab + b2…

Ohm’s Law - How Voltage, Current, and Resistance Relate

Textbook

The first, and perhaps most important, the relationship between…

Inductors and Calculus

Textbook

Inductors do not have a stable “resistance” as conductors…

Applications of Resonance

Textbook

So far, the phenomenon of resonance appears to be a useless curiosity,…

Voltage Comparator

Textbook

Parts and Materials Operational amplifier, model 1458 or 353…