What is the purpose of the switch shown in this schematic diagram?
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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.
Textbook
Don’t just sit there! Build something!! Learning to mathematically…
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In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.
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It is fairly important to use large value resistors (10 MΩ works…
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This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.
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Don’t just sit there! Build something!! Learning to mathematically…
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What does it mean for an object to have an electric charge? Give an…
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A technician uses a stroboscope to “freeze” the rotation of a…
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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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In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.
Textbook
In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.
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Electromechanical watt-hour meters use an aluminum disk that is spun…
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In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.
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Suppose we had a simple one-battery, one-lamp circuit controlled by a…
Textbook
Don’t just sit there! Build something!! Learning to mathematically…
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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.
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In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.
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Don’t just sit there! Build something!! Learning to mathematically…
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Shown here is the schematic symbol for a resistor: What is the purpose…
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In the design of large and complex digital systems, it is often…
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This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.
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This tool is designed to calculate cross-talk coefficient and coupled voltage for a microstrip.
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(“c” being a constant) RELATED…
Textbook
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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In this hands-on electronics experiment, you will create a battery from a potato (yes! a potato) and learn about the relationship between chemical energy and electric energy.
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The armature windings of your DC motor will have very low resistance.…
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In this introduction to series resistance circuits, we will explain…
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When a PCB designer speaks of dimensions in thous or mils, what does…
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This calculator determines the bias and feedback of resistors for an inverting op-amp.
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Define the following terms: energy, work, and power.
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In simple AC power systems, one of the two conductors is typically…
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There are three basic factors of capacitor construction determining…
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“Advances are made by answering questions. Discoveries are made…
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Textbook
At the beginning of this chapter, it illustrates how transistors could…
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Value of time constant in series RC and RL circuits Time…
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Identify the type of logic gate shown in this schematic diagram, and…
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Don’t just sit there! Build something!! Learning to mathematically…
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Write the following exponential expressions in expanded form: 101 =…
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In this hands-on electronics experiment, construct a signal generator circuit that creates two different types of ramp signals and learn how capacitors charge when connected to resistors and constant current sources.
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The peak voltage calculator calculates peak voltage values from the peak-to-peak voltage, RMS voltage, or average voltage.
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Contributors to this chapter are listed in chronological order of…
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This calculator will determine the square root, cube root, or nth root of a given number, x.
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Radio waves are comprised of oscillating electric and magnetic fields,…
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In this hands-on electronics experiment, build an oscillator with hysteresis from a Schmitt trigger and learn how to use it to create an RC oscillator and a method to configure a 555 timer as an astable multivibrator.
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At the start of this book, we discussed static electricity and how it…
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Like all electrical and electronic components, transistors are limited…
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So far in our discussions on electricity and electric circuits, we…
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Two relatively recent technologies designed to reduce the…
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∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…
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“All men are liable to error;” —John Locke Whereas…
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(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…
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Since complex numbers are legitimate mathematical entities, just like…
Textbook
In this hands-on semiconductor electronics experiment, construct a common-emitter amplifier using a bipolar junction transistor (BJT) and learn about amplifier gain and feedback.
Textbook
Like bipolar transistors, SCRs and TRIACs are also manufactured as…
Textbook
Suppose you were installing a high-power stereo system in your car,…
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A helpful analogy for understanding divided feedback amplifier…
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Identify the type of logic gate shown in this schematic diagram, and…
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This tool is designed to convert power ratios to decibel
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