Most AC motors are induction motors. Induction motors are favored due…
Textbook
If the ends of a wire loop are attached to two half-circular metal…
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Charles Proteus Steinmetz’s first job after arriving in America…
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Generators used in battery-charging systems must be regulated so as to…
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Single Phase Synchronous Motors Single-phase synchronous motors are…
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Just as devices have been made to measure certain physical quantities…
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If an electric current is passed through this wire, which direction…
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Brushless DC motors were developed from conventional brushed DC motors…
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Most students of electricity begin their study with what is known as…
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Normally, the rotor windings of a wound rotor induction motor are…
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After the introduction of the DC electrical distribution system by…
Textbook
Electromechanical watt-hour meters use an aluminum disk that is spun…
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Explain the operation of this “H-bridge” motor control circuit: At…
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Stepper Motor vs Servo Motor A stepper motor is a…
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A three-phase motor may be run from a single-phase power source.…
Textbook
The variable reluctance motor is based on the principle that an…
Textbook
Don’t just sit there! Build something!! Learning to mathematically…
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This calculator uses Faraday's and Lenz's laws to calculate the magnitude and polarity of the induced electromotive force (EMF) caused by a change in magnetic flux through a closed-loop coil.
Tools
Single Phase Synchronous Motors Single-phase synchronous motors are…
Textbook
In this hands-on electronics experiment, you will use a potentiometer as a variable resistor to control the speed of a motor and learn how to connect a potentiometer as a rheostat.
Textbook
Read the following quotation, and then research the term…
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Shaded Pole Induction Motor An easy way to provide starting torque to…
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As an electric current is passed through a coil of wire, it creates a…
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Most AC motors are induction motors. Induction motors are favored due…
Textbook
In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.
Textbook
The armature windings of your DC motor will have very low resistance.…
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Don’t just sit there! Build something!! Learning to analyze digital…
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After the introduction of the DC electrical distribution system by…
Textbook
In this hands-on electronics experiment, build an audio amplifier using a vacuum tube (triode) and learn about voltage transformers, how to build a high-voltage DC power supply, and how to use a transformer for impedance matching.
Textbook
At first it may seem pointless to have the four buffer gates following…
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Don’t just sit there! Build something!! Learning to mathematically…
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A tool designed to calculate the maximum speed, minimum time per step and maximum power of a stepper motor
Tools
Explain the operation of this “H-bridge” motor control circuit: At…
Worksheets - Encoders
Calculate the voltage output by the secondary winding of a transformer…
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Just as devices have been made to measure certain physical quantities…
Textbook
Perhaps the most challenging aspect of interpreting ladder diagrams,…
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Resonance in a Tank Circuit A condition of resonance will be…
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In this hands-on AC electronics experiment, you will sense AC electric fields using the sensitive voltage detector and learn about capacitive coupling, EMI, and shielding techniques.
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At the start of this book, we discussed static electricity and how it…
Textbook
The superposition theorem is one of those strokes of genius that takes…
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Pure resistive AC circuit: voltage and current are in phase. …
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Specific resistance at 20o C: Material Element/Alloy ohm-cmil/ft…
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What Is an XOR Gate? One element conspicuously missing from the set of…
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Designing Wire Resistance Conductor ampacity rating is a crude…
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Don’t just sit there! Build something!! Learning to mathematically…
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What does the acronym RF stand form, in reference to radio-related…
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Calculate the voltage output by the secondary winding of a transformer…
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Ladder diagrams are specialized schematics commonly used to document…
Textbook
In this hands-on semiconductor electronics experiment, build an astable multivibrator (oscillator) circuit that provides an output in the audio frequency range and learn the effect of component values and supply voltage on oscillation frequency.
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Textbook
Associative Property In addition and multiplication, terms may be…
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Explain how a moving-coil, or dynamic microphone works. Identify how…
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Because binary numeration requires so many bits to represent…
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Suppose we wanted to build a device that could add two binary bits…
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All entries arranged in alphabetical order of surname. Major…
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Arithmetic Sequences An arithmetic sequence is a series of numbers…
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