Categories

Capacitance

Worksheets - Passives

Write an equation describing the precise mathematical relationship…

Inductors and Calculus

Textbook

Inductors do not have a stable “resistance” as conductors…

Voltage and Current Calculations

Textbook

There’s a sure way to calculate any of the values in a reactive…

Resistor Color Codes

Textbook

Try out our Resistor Color Code Calculator in our Tools section.…

Wiring Color Codes Infographic

Textbook

Wiring Color Codes Infographic. Released under the Creative Commons…

Peak Detector

Textbook

A peak detector is a series connection of a diode and a…

Multi-Stage Transistor Amplifiers

Worksheets - Passives

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

Design Project: Intercom System

Worksheets - Passives

Design a passive circuit that will create a "split” ( V/-V) power…

Calculating Electric Power

Textbook

Learn the Power Formula We’ve seen the formula for determining…

Inverting and Noninverting OpAmp Voltage Amplifier Circuits

Worksheets - Passives

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

Conductors, Insulators, and Electron Flow

Textbook

The electrons of different types of atoms have different degrees of…

Copper Wire Ampacity Table

Textbook

Ampacities of copper wire, in free air at 30o C: INSULATION TYPE…

DC Generator Theory

Worksheets - Passives

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

Capacitor Charge and Time Constant Calculator

Tools

This calculator computes for the capacitor charge time and energy, given the supply voltage and the added series resistance.

Series and Parallel AC Circuits

Worksheets - Passives

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

555 Schmitt Trigger

Textbook

PARTS AND MATERIALS One 9V Battery Battery Clip (Radio Shack catalog #…

Parallel DC Circuits Practice Worksheet With Answers

Worksheets - Passives

In this circuit, three resistors receive the same amount of voltage…

Design Project: Logic Probe

Worksheets - Passives

What factors determine where potentiometers Rpot1 and Rpot2 must be…

Thyristors

Worksheets - Passives

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

Capacitor Charging and Discharging

Textbook

Capacitor Charging and Discharging Experiment Parts and Materials To…

Inductors

Worksheets - Passives

∫f(x) dx Calculus alert! A 5 H inductor is subjected to an electric…

Design Project: Power Inverter

Worksheets - Passives

A common topology for DC-AC power converter circuits uses a pair of…

555 Monostable Multivibrator

Textbook

PARTS AND MATERIALS One 9V Battery Battery Clip (Radio Shack catalog #…

Series-parallel R, L, and C

Textbook

Now that we’ve seen how series and parallel AC circuit analysis…

Complex Circuits

Textbook

What do we do if we come across a circuit more complex than the simple…

Microprocessor Programming

Worksheets - Passives

What is the difference between a JMP (“jump”) instruction and a…

Coil Inductance Calculator

Tools

This calculator computes the inductance of a wire coil.

The DIAC

Textbook

Like all diodes, Shockley diodes are unidirectional devices; that is,…

Inductor Transient Response

Textbook

Inductors have the exact opposite characteristics of capacitors.…

Polarity of voltage drops

Textbook

When using conventional current flow, we can trace the direction of…

Transistor Ratings and Packages (IGFET)

Textbook

Measurement Circuits

Textbook

Figure below shows a photodiode amplifier for measuring low levels of…

Class B Audio Amplifier

Textbook

PARTS AND MATERIALS Four 6 volt batteries Dual operational amplifier,…

Electrical Isolation

Textbook

SPICE analysis of Electrical Isolation Aside from the ability to…

Why L/R and not LR?

Textbook

Learn About L/R Time Constants It is often perplexing to new students…

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

What is a Meter?

Textbook

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

Ohm’s Law Calculator

Tools

Calculate circuit parameters using Ohm's Law

Mutual Inductance

Worksheets - Passives

When an electric current is passed through a coil of wire, what…

Electron Tubes

Textbook

Cathode:   This is the electrode that is heated and emits the…

Class B Audio Amplifier

Textbook

PARTS AND MATERIALS Four 6 volt batteries Dual operational amplifier,…

Capacitor Quirks

Textbook

As with inductors, the ideal capacitor is a purely reactive device,…

Temperature Coefficients of Resistance Table

Textbook

Temperature coefficient (α) per degree C: Material Element/Alloy…

PC Oscilloscope

Textbook

PARTS AND MATERIALS IBM-compatible personal computer with sound card,…

What are “Series” and “Parallel” Circuits?

Textbook

Circuits consisting of just one battery and one load resistance are…

Common Sources of Hazard

Textbook

Of course, there is a danger of electrical shock when directly…

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

Finite-state Machine

Textbook

Feedback is a fascinating engineering principle. It can turn a rather…

The Common-collector Amplifier

Textbook

Our next transistor configuration to study is a bit simpler for gain…

Introduction to Conductance and Conductors

Textbook

By now you should be well aware of the correlation between electrical…

Numbers versus Numeration

Textbook

It is imperative to understand that the type of numeration system used…

A 50-Ohm Cable?

Textbook

Early in my explorations of electricity, I came across a length of…

Power in Resistive and Reactive AC circuits

Textbook

Consider a circuit for a single-phase AC power system, where a 120…

T-Match Impedance Matching Circuits

Tools

A tool designed to compute the values to be used in a T-match Impedance Circuit

Some Examples with AC Circuits

Textbook

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

Demultiplexers

Textbook

A demultiplexer, sometimes abbreviated dmux, is a circuit that has one…

Why digital?

Textbook

Although many textbooks provide good introductions to digital memory…

Series Batteries

Textbook

PARTS AND MATERIALS Two 6-volt batteries One 9-volt battery  …

Voltage Divider Calculator

Tools

The voltage divider is a circuit used to create a voltage less than or equal to the input voltage.

Electronics as Science

Textbook

Electronics is a science, and a very accessible science at that. With…