Centuries ago, it was discovered that certain types of mineral rock…
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.
In this hands-on electronics experiment, you will build a thermocouple to measure temperature changes and learn about the Seebeck effect.
Brushless DC motors were developed from conventional brushed DC motors…
By introducing electrical reactance into the feedback loops of an…
Most of us have experienced some form of electric “shock,”…
In this hands-on semiconductor electronics experiment, use a junction field-effect transistor (JFET) to build a sensitive switching circuit and learn about JFET current gain.
In this hands-on semiconductor electronics experiment, build a BJT differential amplifier and learn about a fundamental building block that is the basis of most operational amplifiers.
This calculator will convert pressure values to ten different standard units for pressure.
A very important measurement in many liquid chemical processes…
In this hands-on electronics experiment, you will construct a voltage detector with adjustable sensitivity and audio output, and you will learn a method for detecting small electrical signals without an oscilloscope.
In this hands-on electronics experiment, you will perform a 4-wire Kelvin resistance measurement and learn how to accurately measure resistance.
Differential Op-Amp Circuits An op-amp with no feedback is already a…
If a strip of conductive metal is stretched, it will become skinnier…
The bipolar junction transistor (BJT) was named because its operation…
Single Phase Synchronous Motors Single-phase synchronous motors are…
In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.
Having learned about digital memory devices in the last chapter, we…
This calculator will determine the combined Lorentz force exerted on a charged particle moving through both an electric field and a magnetic field.
Seebeck Effect An interesting phenomenon applied in the field of…
Anyone who’s studied geometry should be familiar with the…
Suppose you were to take a 3 kW electric heater rated for 240 VAC and…
In this hands-on electronics experiment, you will build an analog voltage comparator circuit and learn how open-loop operational amplifiers function.
In this hands-on electronics experiment, build a digital combination lock with LED output indicators and learn about XOR gate functionality and how to implement NOR logic functionality using diodes.
The interlock contacts installed in the previous section’s motor…
This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.
What is an Insulated Gate Bipolar Transistor (IGBT), and what…
Learn the Power Formula We’ve seen the formula for determining…
Don’t just sit there! Build something!! Learning to analyze digital…
Contributors to this chapter are listed in chronological order of…
Don’t just sit there! Build something!! Learning to mathematically…
In this hands-on electronics experiment, you will build resistive current dividers and observe how Ohm's law and Kirchhoff's current law function in real circuits using a voltmeter and an ammeter.
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.
Capacitors Vs. Resistors Capacitors do not behave the same as…
Given three of the four input parameters (refractive indices, angles of incidence, and refraction) this tool calculates the missing variable based on Snell's law.
Often in the course of designing and building electrical meter…
A circuit with an inductor (L) and capacitor (C) connected in parallel or series will have a resonant frequency at which their impedances are equal. Given two of the three values—inductance, capacitance, or resonant frequency—this tool will calculate the missing third variable.
What is the purpose of the switch shown in this schematic diagram?
Don’t just sit there! Build something!! Learning to mathematically…
