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

Wheatstone Bridge Calculator

This calculator helps determine the resistance of a variable resistor within a Wheatstone bridge circuit or the differential voltage created across the bridge terminals.

---

Tools

Special Diodes

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

---

Worksheets - Smartwatches

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

The Thyristor

A thyristor is a device that has a number of unusual characteristics.…

---

Textbook

Boolean Arithmetic

Let us begin our exploration of Boolean algebra by adding numbers…

---

Textbook

Digital Logic With Feedback

With simple gate and combinational logic circuits, there is a definite…

---

Textbook

Circuit Simplification Examples

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

---

Textbook

What is a Meter?

A meter is any device built to accurately detect and display an…

---

Textbook

Basic Ohmmeter Use

Explain how an ohmmeter is able to measure the resistance of a…

---

Worksheets - Smartwatches

Conventional Transistor Overview and Special Transistors

A microcontroller is a specialized type of digital computer used to…

---

Worksheets - Smartwatches

Time-delay Relays

What are Time-Delay Relays? Some relays are constructed with a kind of…

---

Textbook

The D Latch

Since the enable input on a gated S-R latch provides a way to latch…

---

Textbook

Frequency and Phase Measurement

An important electrical quantity with no equivalent in DC circuits is…

---

Textbook

Relay Construction

Electricity and Magnetism An electric current through a conductor will…

---

Textbook

Superconducting Devices

Superconducting devices, though not widely used, have some unique…

---

Textbook

Strain Gauges

If a strip of conductive metal is stretched, it will become skinnier…

---

Textbook

Asynchronous Counters

In the previous section, we saw a circuit using one J-K flip-flop that…

---

Textbook

Class B BJT Amplifiers

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

---

Worksheets - Smartwatches

Systems of Numeration

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

---

Textbook

Active Loads in Amplifier Circuits

We know that the current in a series circuit may be calculated with…

---

Worksheets - Smartwatches

Vol VI. Credits

The following is a partial list of contributors to the current online…

---

Textbook