At the start of this book, we discussed static electricity and how it…
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In the chapter on mixed-frequency signals, we explored the concept of…
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In order to work with complex numbers without drawing vectors, we…
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What shape of voltage waveform would you expect to measure (using an…
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An ideal transistor would show 0% distortion in amplifying a signal.…
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In DC and low-frequency AC circuits, the characteristic impedance of…
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This calculator helps you determine the values of the resistors R1 and R2 to be used for a bridged-tee attenuator.
Tools
The basic application of Ohm’s law to combinations of series and…
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When an electric current is passed through a coil of wire, what…
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What is Rectification? Now we come to the most popular application of…
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Whenever there is a mismatch of impedance between transmission line…
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While Oersted’s surprising discovery of electromagnetism paved…
Textbook
A helpful tool for calculating the impedance of a coaxial cable.
Tools
A tool designed to convert RF power from watts to decibels and vice versa
Tools
It has been found that any repeating, non-sinusoidal waveform can be…
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The Q, or quality, factor of a resonant circuit is a measure of the…
Textbook
The discovery of the relationship between magnetism and electricity…
Textbook
This calculator computes the resonant frequency of a parallel inductor and capacitor "tank" circuit.
Tools
Impedance Matching Because transformers can step voltage and current…
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How to Create a Band-stop Filter? Also called band-elimination,…
Textbook
In this hands-on semiconductor electronics experiment, build a voltage follower amplifier using a bipolar junction transistor (BJT) in common-collector configuration and learn about circuit ground and impedance transformations.
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A tool designed to convert RF power from watts to decibels and vice versa
Tools
Additive Identity a + 0 = a Multiplicative Identity 1a = a…
Textbook
Certain substances are known to physically deform (shorten or…
Worksheets - Wireless/RF
While mention of operational amplifiers typically provokes visions of…
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Suppose you were to take a 3 kW electric heater rated for 240 VAC and…
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In mathematics, an identity is a statement true for all possible…
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The jobs of electronics engineers and technicians frequently entail…
Textbook
Over the course of learning about electricity, you will want to…
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Centuries ago, it was discovered that certain types of mineral rock…
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When we store information in some kind of circuit or device, we not…
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In this hands-on electronics experiment, you will connect batteries in parallel to power a light and learn the relationship between the individual battery currents and the total system current.
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Inductors have the exact opposite characteristics of capacitors.…
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In an astable circuit, the output voltage alternates between VCC and 0 volts on a continuous basis. This calculator will help you design an oscillator using a 555 timer IC.
Tools
As opposed to normal equations where the solution is a number, a…
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Contributors to this chapter are listed in chronological order of…
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For extremely high-frequency applications (above 1 GHz), the…
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A circuit which removes the peak of a waveform is known as a clipper.…
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If we add a voltage divider to the negative feedback wiring so that…
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Because batteries create current flow in a circuit by exchanging…
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In an ideal case, an inductor acts as a purely reactive device. That…
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A chandelier has five light bulbs in it, and one of them is not…
Worksheets - Wireless/RF
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.
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Worksheets - Wireless/RF
The discovery of the relationship between magnetism and electricity…
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In this hands-on electronics experiment, you will build a programmable non-inverting amplifier and learn how to use the negative feedback of an operational amplifier to control the gain.
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In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.
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Contributors to this chapter are listed in chronological order of…
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A transistor is a semiconductor device that controls current with the…
Textbook
In this hands-on electronics experiment, build an edge-triggered S-R flip-flop, learn the difference between a latch and a flip-flop, and experience how a switch bounce can cause logic errors.
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Contributors to this chapter are listed in chronological order of…
Textbook
In this hands-on AC electronics experiment, use the frequency spectrum display from an oscilloscope program to observe waveforms from a musical keyboard and learn about spectral analysis.
Textbook
Shown here is a simplified representation of an atom: the smallest…
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Practical Benefit of Active Devices The practical benefit of active…
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A helpful tool for calculating the impedance of a coaxial cable.
Tools
If I needed to describe the distance between two cities, I could…
Textbook
Protective relays are special power-sensing devices whose job it is to…
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Any kind of switch contact can be designed so that the contacts…
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Voltage is commonly defined as “electrical pressure.” The unit of…
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There are two basic Ohm’s Law equations: one relating voltage,…
Worksheets - Wireless/RF
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