In this hands-on electronics experiment, build an audio amplifier using a vacuum tube (triode) and learn about voltage transformers, how to build a high-voltage DC power supply, and how to use a transformer for impedance matching.
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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.
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If some percentage of an amplifier’s output signal is connected…
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Try out our Resistor Color Code Calculator in our Tools section.…
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In this hands-on electronics experiment, you will build capacitor charging and discharging circuits and learn how to calculate the RC time constant of resistor-capacitor circuits.
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As was previously mentioned, we need more than just a continuous path…
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Don’t just sit there! Build something!! Learning to mathematically…
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So far, the filter designs we’ve concentrated on have employed…
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Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Resistors
Remember that this tutorial is not exhaustive by any means, and that…
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The Q, or quality, factor of a resonant circuit is a measure of the…
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No text on electrical metering could be called complete without a…
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Using the same value components in our series example circuit, we will…
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Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Resistors
This calculator computes for the capacitor charge time and energy, given the supply voltage and the added series resistance.
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In this hands-on electronics experiment, you will use potentiometers to vary a voltage and learn about voltage divider ratios and potentiometer applications.
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Although transistor switching circuits operate without bias, it is…
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In this circuit, three resistors receive the same amount of voltage…
Worksheets - Resistors
In the previous section, we explored what would happen in simple…
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This calculator helps determine the resistance of a variable resistor within a Wheatstone bridge circuit or the differential voltage created across the bridge terminals.
Tools
Learn About L/R Time Constants It is often perplexing to new students…
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In this hands-on electronics experiment, build an audio amplifier using a vacuum tube (triode) and learn about voltage transformers, how to build a high-voltage DC power supply, and how to use a transformer for impedance matching.
Textbook
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.
Tools
The Skin Depth of Copper in Electrical Engineering As previously…
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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.
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Whenever electrons flow through a conductor, a magnetic field will…
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∫f(x) dx Calculus alert! A 5 H inductor is subjected to an electric…
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A rheostat (variable resistor) and a switch are both examples of…
Worksheets - Resistors
In this circuit, three resistors receive the same amount of voltage…
Worksheets - Resistors
In this hands-on electronics experiment, build a blue LED flasher using a 555 timer and learn the basic theory of a voltage doubler using a transistor switch and a capacitor.
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Don’t just sit there! Build something!! Learning to mathematically…
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A similar effect happens in series inductive/capacitive circuits. When…
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An inductor is a passive two-terminal electrical component that…
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If a sinusoidal voltage is applied to an impedance with a phase angle…
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Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Resistors
Ohm’s Law also makes intuitive sense if you apply it to the…
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Generators used in battery-charging systems must be regulated so as to…
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The Inductance Formula Wheeler’s formulas for…
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This calculator calculates the resistivity of a component based on its resistance value, length, and cross-sectional area.
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Identify some of the different types of capacitors, and their…
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This calculator uses Faraday's and Lenz's laws to calculate the magnitude and polarity of the induced electromotive force (EMF) caused by a change in magnetic flux through a closed-loop coil.
Tools
A modern alternative to sending (binary) digital information via…
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Logic circuits, whether comprised of electromechanical relays or…
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In simple reactive circuits with little or no resistance, the effects…
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After the introduction of the DC electrical distribution system by…
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In addition to forward voltage drop (Vf) and peak inverse voltage…
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For a given amount of water pressure, which will flow a greater rate…
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The discovery of the relationship between magnetism and electricity…
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A helpful tool for calculating the impedance of a coaxial cable.
Tools
The smaller the cross-sectional area of any given wire, the greater…
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In the chapter on mixed-frequency signals, we explored the concept of…
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A serial-in, parallel-out shift register is similar to the serial-in,…
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If we add a voltage divider to the negative feedback wiring so that…
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As we saw earlier, a power system with no secure connection to earth…
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In this hands-on introduction to electronics, you will experiment with a multimeter and learn how to measure current using the ammeter function.
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What is Split-Phase Power Systems? Split-phase power systems achieve…
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Connecting digital circuitry to sensor devices is simple if the sensor…
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The R/2R DAC circuit is an alternative to the binary-weighted-input…
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Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Resistors
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