What does the acronym RF stand form, in reference to radio-related…
As an instructor of electronics, I am called upon frequently to help…
The time constant of a series RC circuit is the product of the resistance and capacitance. Given two of the three values—resistance, capacitance, or RC time constant—this tool will calculate the missing third variable.
As we saw with DC measurement circuits, the circuit configuration…
Don’t just sit there! Build something!! Learning to mathematically…
Don’t just sit there! Build something!! Learning to mathematically…
In very simple, qualitative terms, rate the impedance of capacitors…
This calculates the capacitance of a capacitor based on its charge, Q, and its voltage, V, according to the formula, C=Q/V.
As an electric current is passed through a coil of wire, it creates a…
Because capacitors store energy in the form of an electric field, they…
Capacitors Vs. Resistors Capacitors do not behave the same as…
In this hands-on AC electronics experiment, build a simple RC circuit that demonstrates phase shift and learn how out-of-phase AC voltages do not add algebraically.
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.
Capacitors do not have a stable “resistance” as conductors…
Write an equation describing the precise mathematical relationship…
A modern method of electrical power control involves inserting a…
Remember that this tutorial is not exhaustive by any means, and that…
In this hands-on AC electronics experiment, power a DC motor through a multi-conductor cable to learn how AC signals are coupled between conductors and how to mitigate noise coupling.
∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…
Don’t just sit there! Build something!! Learning to mathematically…
In this hands-on AC electronics experiment, you will sense AC magnetic fields using a simple wire coil and learn about AC signal coupling, orientation effects, and the impact of shielding using different materials.
The concept and measurement units of resistance are most often used…
In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.
The Q, or quality, factor of a resonant circuit is a measure of the…
This calculator computes the inductance of a wire coil.
Designing Wire Resistance Conductor ampacity rating is a crude…
“Garbage in, garbage out.” —Anonymous SPICE…
Don’t just sit there! Build something!! Learning to mathematically…
“Advances are made by answering questions. Discoveries are made…
Capacitors Vs. Resistors Capacitors do not behave the same as…
Often in the course of designing and building electrical meter…
A switch can be constructed with any mechanism bringing two conductors…
Resistors vs. Inductors Inductors do not behave the same way as…
In this hands-on electronics experiment, you will build a null-balancing potentiometric voltmeter and learn how to prevent a voltmeter from changing the voltage it is measuring.
In an ideal case, an inductor acts as a purely reactive device. That…
Write an equation describing the precise mathematical relationship…
Don’t just sit there! Build something!! Learning to mathematically…
By definition, a low-pass filter is a circuit offering easy passage to…
This calculator determines the bias and feedback of resistors for an inverting op-amp.
Most integrated circuits are digital, based on MOS (CMOS) transistors.…
Since Thevenin’s theorem and Norton’s theorems are two…
A third variation on the counter-DAC-based converter theme is, in my…
It may seem difficult to even start on a project such as this, with no…
This tool is designed to calculate cross-talk coefficient and coupled voltage for a microstrip.
An electromechanical generator is a device capable of producing…
Let us begin our exploration of Boolean algebra by adding numbers…
This calculator will convert pressure values to ten different standard units for pressure.
This calculator will convert voltage or power gains into decibels. Enter one of the three values and the calculator will output the other two.
In this hands-on AC electronics experiment, build a parallel resonant inductor-capacitor circuit and learn about oscillation, resonant frequency, and damping.
In this hands-on electronics experiment, you will control a 7-segment binary-coded decimal (BCD) display and learn about active-low and active-high logic inputs.
This calculator will solve for either distance, time, or speed given two of the three parameters.
In this circuit, the electric motor is supposed to turn on whenever…
Euler’s Number Euler’s constant is an important value for…
Let’s begin with a semiconductor gate circuit in need of…
In this hands-on electronics experiment, you will build a simple voltmeter and ammeter while learning some fundamentals about circuit measurements.
This calculator will determine the instantaneous energy, sustained energy, and power consumed by an electrical system given two of the three electrical parameters (voltage, current, or resistance) and the time.
With BogusBus, our signals were very simple and straightforward: each…
In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.
Notice something important here: taking the derivative of f(x)…