In an ideal case, an inductor acts as a purely reactive device. That…
Don’t just sit there! Build something!! Learning to mathematically…
Don’t just sit there! Build something!! Learning to mathematically…
This tool calculates a capacitor's reactance for a given capacitance value and signal frequency.
Introduction Whenever an electric voltage exists between two separated…
PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…
Capacitors, like all electrical components, have limitations that must…
As was mentioned before, the angle of this “power…
Don’t just sit there! Build something!! Learning to mathematically…
Don’t just sit there! Build something!! Learning to mathematically…
Don’t just sit there! Build something!! Learning to mathematically…
Before we begin to explore the effects of resistors, inductors, and…
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.
∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…
A capacitor is a passive two-terminal electronic component that…
As an instructor of electronics, I am called upon frequently to help…
Don’t just sit there! Build something!! Learning to mathematically…
Capacitors do not have a stable “resistance” as conductors…
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.
A very common misconception students have about potentiometers is the…
The atoms in insulating materials have very tightly-bound electrons,…
Capacitance Formula Permittivity of Dielectric …
PARTS AND MATERIALS Two 6-volt batteries Carbon pencil…
Don’t just sit there! Build something!! Learning to mathematically…
A common phrase heard in reference to electrical safety goes something…
Don’t just sit there! Build something!! Learning to mathematically…
The electrons of different types of atoms have different degrees of…
When capacitors are connected in series, the total capacitance is…
All entries arranged in alphabetical order of surname. Major…
The Inductance Formula Wheeler’s formulas for…
The concept and measurement units of resistance are most often used…
What do we do if we come across a circuit more complex than the simple…
Don’t just sit there! Build something!! Learning to mathematically…
Instantaneous Values in AC Circuits Pure resistive AC circuit:…
What is Conductance? In the study of DC circuits, the student of…
Don’t just sit there! Build something!! Learning to mathematically…
“Garbage in, garbage out.” —Anonymous SPICE is a…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
PARTS AND MATERIALS Sensitive meter movement (Radio Shack catalog #…
While the C-B (common-base) amplifier is known for wider bandwidth…
How to Create Band-pass Filter There are applications where a…
If an electric current is passed through this wire, which direction…
So far, we’ve been analyzing single-battery, single-resistor…
JFETs, like bipolar transistors, are able to “throttle”…
Solving for x in a given polynomial equation “ax2 + bx + c…
The Maximum Power Transfer Theorem is not so much a means of analysis…
The SPICE circuit simulation computer program uses scientific notation…
Though mechanical ohmmeter (resistance meter) designs are rarely used…
Don’t just sit there! Build something!! Learning to mathematically…
Show how this ammeter would be connected to the light bulb circuit to…
Though it may seem strange to cover the elementary topic of electrical…
Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…
For a given amount of water pressure, which will flow a greater rate…
Although transistor switching circuits operate without bias, it is…
In designing digital circuits, the designer often begins with a truth…
This calculator will help compute the inductance of a length of wire.
“I consider that I understand an equation when I can predict the…
If two coils of wire are brought into close proximity with each other…
In addition to forward voltage drop (Vf) and peak inverse voltage…
