Lorentz Force Calculator

This calculator will determine the combined Lorentz force exerted on a charged particle moving through both an electric field and a magnetic field.

Tools

DC Lab - Potentiometer as a Rheostat

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.

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Servo Motor Systems

Explain the operation of this “H-bridge” motor control circuit: At…

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Instrumentation Amplifier Gain Calculator

The instrumentation amplifier calculator will assist in the design and analysis of a conventional instrumentation amplifier circuit by calculating the required resistor values and gain.

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Design Project: Stepper Motor Driver

At first it may seem pointless to have the four buffer gates following…

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Wound Rotor Induction Motors

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

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Radio Circuits

(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…

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Calculus for Electric Circuits

∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…

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The Importance of Electrical Safety

With this lesson, I hope to avoid a common mistake found in…

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AC Commutator Motors

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

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Boolean Algebra

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

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Specific Troubleshooting Techniques

After applying some of the general troubleshooting tips to narrow the…

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Linear Computational Circuitry

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

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Stepper Motors

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

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Parallel Resistor Calculator

Calculate the equivalent resistance of up to six resistors in parallel with ease while learning how to calculate resistance in parallel and the parallel resistance formula.

Tools

Basic Troubleshooting Strategies

A chandelier has five light bulbs in it, and one of them is not…

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Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…

Textbook

Programmable Logic Controllers (PLC)

Before the advent of solid-state logic circuits, logical control…

Textbook

Design Project: DC Motor

The armature windings of your DC motor will have very low resistance.…

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Tube Lab - Vacuum Tube Audio Amplifier

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

Reluctance Motor

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

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DC Motor Theory

If the ends of a wire loop are attached to two half-circular metal…

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Digital Communication

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

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Parallel Resistor-Inductor Circuits

Let’s take the same components for our series example circuit…

Textbook

Bridge Circuits

No text on electrical metering could be called complete without a…

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AC Waveforms

Radio waves are comprised of oscillating electric and magnetic fields,…

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AC Lab - Musical Keyboard as a Signal Generator

In this hands-on AC electronics experiment, an electronic musical keyboard will be used as a variable-frequency AC signal generator to learn the difference between AC amplitude and frequency.

Textbook

Protective Relay Circuits

Protective relays are special power-sensing devices whose job it is to…

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Decibels

The Bel is Used to Represent Gain In its simplest form, an…

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Transistor Ratings and Packages (IGFET)

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Some Examples with AC Circuits

Let’s connect three AC voltage sources in series and use complex…

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Wound Rotor Induction Motors

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

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AC Generator Theory

If an electric current is passed through this wire, which direction…

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DC Generator Theory

Generators used in battery-charging systems must be regulated so as to…

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Logic Simplification With Karnaugh Maps

The logic simplification examples that we have done so far could have…

Textbook

Potential Pitfalls

Fallacious reasoning and poor interpersonal relations account for more…

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Solving Simultaneous Equations: The Substitution Method and the Addition Method

What are Simultaneous Equations and Systems of Equations? The terms…

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Building a Differential Amplifier

Differential Op-Amp Circuits An op-amp with no feedback is already a…

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Octal and Hexadecimal Numeration

Because binary numeration requires so many bits to represent…

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Active Versus Passive Devices

Passive Devices Components incapable of controlling current by means…

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Impedance

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

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Resonance in Series-Parallel Circuits

In simple reactive circuits with little or no resistance, the effects…

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