Write an equation describing the precise mathematical relationship…
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Don’t just sit there! Build something!! Learning to mathematically…
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Because the relationship between voltage, current, and resistance in…
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Practical Benefit of Active Devices The practical benefit of active…
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Things start to get complicated when we need to relate two or more AC…
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Power Equation of Ohm’s Law and Joule’s Law …
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Bipolar Junction Transistor or BJT Current Mirror An often-used…
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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.
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There are two basic Ohm’s Law equations: one relating voltage,…
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This tool is designed to convert power ratios to decibel
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It used to be with large AC power systems that “power…
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What Is Kirchhoff’s Current Law? Kirchhoff’s Current Law,…
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In this circuit, the electric motor is supposed to turn on whenever…
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Electromechanical relays used to start and stop high-power electric…
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Don’t just sit there! Build something!! Learning to mathematically…
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Because it takes energy to force charge to flow against the opposition…
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When a transistor is in the fully-off state (like an open switch), it…
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SCRs are unidirectional (one-way) current devices, making them useful…
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The Insulated-Gate Field-Effect Transistor (IGFET), also known as…
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The Maximum Power Transfer Theorem is not so much a means of analysis…
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Passive Devices Components incapable of controlling current by means…
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Don’t just sit there! Build something!! Learning to mathematically…
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Varicap or varactor diodes A variable capacitance diode is known as a…
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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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Suppose a 12 volt lead-acid battery has an internal resistance of 20…
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The benefits of scientific notation do not end with ease of writing…
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This calculator helps you compute the characteristic impedance of a symmetric stripline.
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If you’ve used DOS or UNIX operating systems before in a…
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This tool is designed to calculate the maximum distance (range) that a radar can detect
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Calculate the voltage output by the secondary winding of a transformer…
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Don’t just sit there! Build something!! Learning to mathematically…
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This calculator determines the resistance of a microstrip trace
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Learn About L/R Time Constants It is often perplexing to new students…
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Don’t just sit there! Build something!! Learning to mathematically…
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Inductive Reactance Capacitive Reactance …
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A demultiplexer, sometimes abbreviated dmux, is a circuit that has one…
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Contributors to this chapter are listed in chronological order of…
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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.
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If your event sensing switch is mechanical in nature, you will likely…
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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 null-balancing potentiometric voltmeter and learn how to prevent a voltmeter from changing the voltage it is measuring.
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The first, and perhaps most important, relationship between current,…
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A principal consideration for industrial control networks, where the…
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What is the purpose of the switch shown in this schematic diagram?
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Stepper Motor vs Servo Motor A stepper motor is a…
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You might have been wondering how charges can continuously flow in a…
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Don’t just sit there! Build something!! Learning to mathematically…
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Schottky diodes Schottky diodes are constructed of a metal-to-N…
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Shaded Pole Induction Motor An easy way to provide starting torque to…
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In the last section, we learned what would happen in simple…
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Since three-phase is used so often for power distribution systems, it…
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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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To enter numbers in scientific notation into a hand calculator, there…
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This tool is designed to convert power ratios to decibel
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Contributors to this chapter are listed in chronological order of…
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In this hands-on semiconductor electronics experiment, build a full-wave rectifier for AC to DC conversion and learn about center-tapped transformers.
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The field effect transistor was proposed by Julius Lilienfeld in US…
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Normally, the rotor windings of a wound rotor induction motor are…
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In this hands-on semiconductor electronics experiment, construct a three-stage common-emitter amplifier using bipolar junction transistors (BJTs) and learn about multi-stage gain and feedback.
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This calculator helps determine the maximum temperature a device can withstand
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