Suppose a 12 volt lead-acid battery has an internal resistance of 20…
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Generators used in battery-charging systems must be regulated so as to…
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Once again, when building battery/resistor circuits, the student or…
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Don’t just sit there! Build something!! Learning to mathematically…
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In an ideal case, an inductor acts as a purely reactive device. That…
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Capacitors, like all electrical components, have limitations that must…
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In this hands-on semiconductor experiment, build an improved full-wave rectifier with output filtering and learn about capacitive filtering in AC-to-DC power converters.
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Whenever electrons flow through a conductor, a magnetic field will…
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In this hands-on electronics experiment, you will build an analog differentiator circuit that outputs a signal proportional to the rate-of-change and learn about one of the advantages of analog circuits.
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Inductors do not have a stable “resistance” as conductors…
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Try out our Resistor Color Code Calculator in our Tools section.…
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Although transistor switching circuits operate without bias, it is…
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(Template)
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Don’t just sit there! Build something!! Learning to mathematically…
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Early in my explorations of electricity, I came across a length of…
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Don’t just sit there! Build something!! Learning to mathematically…
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A rheostat (variable resistor) and a switch are both examples of…
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Don’t just sit there! Build something!! Learning to mathematically…
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In this hands-on electronics experiment, you will build a pulse-width modulator power controller for a light and learn the basics of PWM signals.
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Don’t just sit there! Build something!! Learning to mathematically…
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The earliest forms of digital data storage involving moving parts was…
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Show how this ammeter would be connected to the light bulb circuit to…
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Transformers with Multiple Secondaries Transformers are very versatile…
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This tool is designed to calculate the maximum distance (range) that a radar can detect
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One of the more advanced ADC technologies is the so-called…
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The SPICE circuit simulation program provides for modeling diodes in…
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Varicap or varactor diodes A variable capacitance diode is known as a…
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The invention of the bipolar transistor in 1948 ushered in a…
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A calculator for computing the impedance of an edge coupled stripline.
Tools
This calculator determines the wavelength of a signal given the frequency and dielectric constant.
Tools
Safety is very important when designing and/or building a device…
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In this electrical circuit, trace the direction of current through the…
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Suppose you were to take a 3 kW electric heater rated for 240 VAC and…
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Bipolar junction transistors (Also known as BJTs) can be used as an…
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Suppose we wished to measure the resistance of some component located…
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The wires between the tank and the monitoring location is called…
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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
Solid Copper Wire Table Size Diameter (inches) Cross-sectional area…
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What Is Kirchhoff’s Current Law? Kirchhoff’s Current Law,…
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Don’t just sit there! Build something!! Learning to analyze digital…
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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.
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The final transistor amplifier configuration (Figure below) we need to…
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There’s a sure way to calculate any of the values in a reactive…
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What do we do if we come across a circuit more complex than the simple…
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Mathematicians use Venn diagrams to show the logical relationships of…
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A special type of relay is one that monitors the current, voltage,…
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The Skin Depth of Copper in Electrical Engineering As previously…
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Note the “50 ohm” rating printed on the jacket of the cable. What…
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What does it mean, in general terms, to encode something? Conversely,…
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In this hands-on electronics experiment, you will control a light with a switch and learn the basics of connecting toggle (on/off) switches into circuits.
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It has been found that any repeating, non-sinusoidal waveform can be…
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Perhaps the most challenging aspect of interpreting ladder diagrams,…
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Radio waves are comprised of oscillating electric and magnetic fields,…
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The normal data inputs to a flip flop (D, S and R, or J and K) are…
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Don’t just sit there! Build something!! Learning to mathematically…
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This calculator will convert pressure values to ten different standard units for pressure.
Tools
A helpful tool for computing the Effective Isotropic Radiated Power (EIRP) of an antenna
Tools
In this motor control circuit, how would you ensure that there is no…
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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.
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As was mentioned before, the angle of this “power…
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