All About Circuits

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Capacitance

Capacitance

Write an equation describing the precise mathematical relationship…


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AC Lab - Variable Inductor

AC Lab - Variable Inductor

In this hands-on AC electronics experiment, build a variable conductor and learn the impact of a metal core placed inside an inductor coil has on the inductance.


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Resonant Filters

Resonant Filters

So far, the filter designs we’ve concentrated on have employed…


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Power Conversion Circuits

Power Conversion Circuits

Don’t just sit there! Build something!! Learning to mathematically…


Worksheets - Inductors

Capacitors and Calculus

Capacitors and Calculus

Capacitors do not have a stable “resistance” as conductors…


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Circuit Components

Circuit Components

Remember that this tutorial is not exhaustive by any means, and that…


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LC Resonant Frequency Calculator

LC Resonant Frequency Calculator

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.


Tools

Inductance, Reactance, and Admittance Calculator

Inductance, Reactance, and Admittance Calculator

This calculator gives the reactance and admittance of an inductor or the inductance given the reactance of an inductor


Tools

Si Lab - Full-wave Bridge Rectifier With Output Filtering

Si Lab - Full-wave Bridge Rectifier With Output Filtering

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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Magnetic Fields and Inductance

Magnetic Fields and Inductance

Whenever electrons flow through a conductor, a magnetic field will…


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Why L/R and not LR?

Why L/R and not LR?

Learn About L/R Time Constants It is often perplexing to new students…


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Ohm’s Law Practice Worksheet With Answers

Ohm’s Law Practice Worksheet With Answers

Define the following terms: energy, work, and power.


Worksheets - Inductors

AC Motor Control Circuits

AC Motor Control Circuits

Perhaps the most challenging aspect of interpreting ladder diagrams,…


Worksheets - Inductors

Input and Output Coupling

Input and Output Coupling

To overcome the challenge of creating necessary DC bias voltage for an…


Textbook

Si Lab - Commutating Diode

Si Lab - Commutating Diode

In this hands-on semiconductor electronics experiment, build a simple circuit that will teach you how to use a commutating diode to reduce inductive kickback.


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Performance-Based Assessments for AC Circuit Competencies

Performance-Based Assessments for AC Circuit Competencies

(Template)


Worksheets - Inductors

Capacitor Quirks

Capacitor Quirks

As with inductors, the ideal capacitor is a purely reactive device,…


Textbook

Practical Considerations - Inductors

Practical Considerations - Inductors

Inductors, like all electrical components, have limitations which must…


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Inductor Transient Response

Inductor Transient Response

Inductors have the exact opposite characteristics of capacitors.…


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Series R, L, and C

Series R, L, and C

Let’s take the following example circuit and analyze it:  …


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Design Project: Intercom System

Design Project: Intercom System

Design a passive circuit that will create a "split” ( V/-V) power…


Worksheets - Inductors

Specific Resistance

Specific Resistance

Designing Wire Resistance Conductor ampacity rating is a crude…


Textbook

DC Lab - Rheostat Range Limiting

DC Lab - Rheostat Range Limiting

In this hands-on electronics experiment, you will use series and parallel resistor networks to precisely adjust the range and zero point of a rheostat.


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Voltage and Current

Voltage and Current

As was previously mentioned, we need more than just a continuous path…


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AC Motor Control Circuits

AC Motor Control Circuits

Perhaps the most challenging aspect of interpreting ladder diagrams,…


Worksheets - Inductors

Inductance

Inductance

∫f(x) dx Calculus alert! One of the fundamental principles of…


Worksheets - Inductors

555 Lab - Advanced Red LED Flasher

555 Lab - Advanced Red LED Flasher

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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Current Divider Circuits and the Current Divider Formula

Current Divider Circuits and the Current Divider Formula

A parallel circuit is often called a current divider for its ability…


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Resistors

Resistors

Shown here is the schematic symbol for a resistor: What is the purpose…


Worksheets - Inductors

Energy, Work, and Power

Energy, Work, and Power

Define the following terms: energy, work, and power.


Worksheets - Inductors

Design Project: Sensitive Microphone Amplifier

Design Project: Sensitive Microphone Amplifier

Identify which direction each potentiometer wiper must move in this…


Worksheets - Inductors

Band Theory of Solids

Band Theory of Solids

Quantum physics describes the states of electrons in an atom according…


Textbook

Si Lab - Commutating Diode

Si Lab - Commutating Diode

In this hands-on semiconductor electronics experiment, build a simple circuit that will teach you how to use a commutating diode to reduce inductive kickback.


Textbook

Switch Contact Design

Switch Contact Design

A switch can be constructed with any mechanism bringing two conductors…


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Resistivity Calculator

Resistivity Calculator

This calculator calculates the resistivity of a component based on its resistance value, length, and cross-sectional area.


Tools

A 50-Ohm Cable?

A 50-Ohm Cable?

Early in my explorations of electricity, I came across a length of…


Textbook

How to Calculate Power in a Series and Parallel Circuit

How to Calculate Power in a Series and Parallel Circuit

When calculating the power dissipation of resistive components, we can…


Textbook

Simple Series Resonance

Simple Series Resonance

A similar effect happens in series inductive/capacitive circuits. When…


Textbook

Voltage and Current Calculations

Voltage and Current Calculations

There’s a sure way to calculate any of the values in a reactive…


Textbook

Active Loads in Amplifier Circuits

Active Loads in Amplifier Circuits

We know that the current in a series circuit may be calculated with…


Worksheets - Inductors

Boolean Rules for Simplification

Boolean Rules for Simplification

Boolean algebra finds its most practical use in the simplification of…


Textbook

Intro Lab - How to Use an Ohmmeter to Measure Resistance

Intro Lab - How to Use an Ohmmeter to Measure Resistance

In this hands-on introduction to electronics, you will experiment with a multimeter and learn how to measure resistance using the ohmmeter function.


Textbook

The Tetrode

The Tetrode

As the name suggests, the tetrode tube contains four elements: cathode…


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Wire Loop Inductance Calculator

Wire Loop Inductance Calculator

This calculator helps you compute the inductance of a wire loop.


Tools

The Common-gate Amplifier (IGFET)

The Common-gate Amplifier (IGFET)


Textbook

Ammeter Design

Ammeter Design

Ammeters Measure Electrical Current A meter designed to measure…


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Polyphase Power Systems

Polyphase Power Systems

Explain the difference between a balanced polyphase system and an…


Worksheets - Inductors

Introduction to Karnaugh Mapping

Introduction to Karnaugh Mapping

Why learn about Karnaugh maps? The Karnaugh map, like Boolean…


Textbook

General Troubleshooting Tips

General Troubleshooting Tips

When first approaching a failed or otherwise misbehaving system, the…


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Amplifiers

Amplifiers

Practical Benefit of Active Devices The practical benefit of active…


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Series LED Resistor Calculator

Series LED Resistor Calculator

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.


Tools

Troubleshooting Series and Parallel Circuits

Troubleshooting Series and Parallel Circuits

The jobs of electronics engineers and technicians frequently entail…


Textbook

Electrons and “holes’’

Electrons and “holes’’

Pure semiconductors are relatively good insulators as compared with…


Textbook

Multiplexers

Multiplexers

A multiplexer, abbreviated mux, is a device that has multiple inputs…


Textbook

Input and Output Coupling

Input and Output Coupling

To overcome the challenge of creating necessary DC bias voltage for an…


Textbook

Conventional Transistor Overview and Special Transistors

Conventional Transistor Overview and Special Transistors

A microcontroller is a specialized type of digital computer used to…


Worksheets - Inductors

Algebraic Substitution for Electric Circuits

Algebraic Substitution for Electric Circuits

There are two basic Ohm’s Law equations: one relating voltage,…


Worksheets - Inductors

Permissive and Interlock Circuits

Permissive and Interlock Circuits

A practical application of switch and relay logic is in control…


Textbook

Superposition Theorem

Superposition Theorem

The superposition theorem is one of those strokes of genius that takes…


Textbook

Wire Types and Sizes

Wire Types and Sizes

Most electrical wire is covered in a rubber or plastic coating called…


Worksheets - Inductors