All About Circuits

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Resistors

Resistors

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


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Soldering

Soldering

Both soldering irons and soldering guns are tools used in the process…


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Algebraic Equation Manipulation for Electric Circuits

Algebraic Equation Manipulation for Electric Circuits

The electrical resistance of a conductor at any temperature may be…


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Noise Figure and Noise Temperature Calculator

Noise Figure and Noise Temperature Calculator

This calculator computes the noise figure and noise temperature in a system


Tools

Electrical Conduction in Semiconductors

Electrical Conduction in Semiconductors

In any electrically conductive substance, what are charge carriers?…


Worksheets - Cooling

Open-Loop OpAmp Circuits

Open-Loop OpAmp Circuits

Determine what the magnitude and polarity of the voltmeter’s…


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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 - Cooling

Heat Sink Calculator

Heat Sink Calculator

This calculator helps determine the maximum temperature a device can withstand


Tools

Temperature Coefficient of Resistance

Temperature Coefficient of Resistance

It is a common phenomenon for the electrical resistance of a substance…


Worksheets - Cooling

Batteries

Batteries

If I wanted to build a battery-powered electric drill, would it be…


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Temperature Coefficients of Resistance Table

Temperature Coefficients of Resistance Table

Temperature coefficient (α) per degree C: Material Element/Alloy…


Textbook

Temperature Converter

Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin


Tools

AC Motor Control Circuits

AC Motor Control Circuits

Perhaps the most challenging aspect of interpreting ladder diagrams,…


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Copper Wire Gauge Table

Copper Wire Gauge Table

Solid Copper Wire Table Size Diameter (inches) Cross-sectional area…


Textbook

Conventional Transistor Overview and Special Transistors

Conventional Transistor Overview and Special Transistors

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


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TTL NAND and AND gates

TTL NAND and AND gates

Suppose we altered our basic open-collector inverter circuit, adding a…


Textbook

Building Series-Parallel Resistor Circuits

Building Series-Parallel Resistor Circuits

Once again, when building battery/resistor circuits, the student or…


Textbook

Rules for Limits

Rules for Limits

    RELATED WORKSHEETS: Calculus for Electric Circuits…


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Complex Vector Addition

Complex Vector Addition

If vectors with uncommon angles are added, their magnitudes (lengths)…


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Vol IV. Credits

Vol IV. Credits

All entries arranged in alphabetical order of surname. Major…


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Boolean Relationships on Venn Diagrams

Boolean Relationships on Venn Diagrams

The fourth example has A partially overlapping B. Though, we will…


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AC Commutator Motors

AC Commutator Motors

Charles Proteus Steinmetz’s first job after arriving in America…


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Phase-locked Loops

Phase-locked Loops


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Creating Custom Calibration Resistances

Creating Custom Calibration Resistances

Often in the course of designing and building electrical meter…


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Ionization (gas-filled) Tubes

Ionization (gas-filled) Tubes

So far, we’ve explored tubes which are totally…


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The Exclusive-OR Function: The XOR Gate

The Exclusive-OR Function: The XOR Gate

What Is an XOR Gate? One element conspicuously missing from the set of…


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Important Constants

Important Constants

Euler’s Number Euler’s constant is an important value for…


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Definite Integrals and the Fundamental Theorem of Calculus

Definite Integrals and the Fundamental Theorem of Calculus

        RELATED WORKSHEET: Calculus for Electric…


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Simple Vector Addition

Simple Vector Addition

Remember that vectors are mathematical objects just like numbers on a…


Textbook

Common Derivatives

Common Derivatives

    RELATED WORKSHEETS: Calculus for Electric Circuits…


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AC Voltmeters and Ammeters

AC Voltmeters and Ammeters

AC electromechanical meter movements come in two basic arrangements:…


Textbook

Vectors and AC Waveforms

Vectors and AC Waveforms

OK, so how exactly can we represent AC quantities of voltage or…


Textbook

Capacitance Calculator

Capacitance Calculator

This calculates the capacitance of a capacitor based on its charge, Q, and its voltage, V, according to the formula, C=Q/V.


Tools

Magnetic Units of Measurement

Magnetic Units of Measurement

In electric circuits, the three basic quantities are voltage (E or V),…


Worksheets - Cooling

Convert MCD to Lumens

Convert MCD to Lumens

This calculator is useful for calculating the luminous flux for LEDs where the angle is known.


Tools

Hysteresis

Hysteresis

Thyristors are a class of semiconductor components exhibiting…


Textbook

Friis Transmission Calculator

Friis Transmission Calculator

This calculator allows you to solve for any of the six variables in the Friis formula for RF transmission: transmitter power, transmitter gain, receiver power, receiver gain, frequency, or distance.


Tools

Rectifying Diodes

Rectifying Diodes

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


Worksheets - Cooling

DC Lab - Voltage Divider

DC Lab - Voltage Divider

In this hands-on electronics experiment, you will build a resistive voltage divider and observe how Ohm's law and Kirchhoff's voltage law (KVL) function in real circuits using a voltmeter and an ammeter.


Textbook

Resistor Color Codes

Resistor Color Codes

Try out our Resistor Color Code Calculator in our Tools section.…


Textbook

Peak, Average, and RMS Measurements

Peak, Average, and RMS Measurements

How is it possible to assign a fixed value of voltage or current (such…


Worksheets - Cooling

Δ-Y and Y-Δ Conversions

Δ-Y and Y-Δ Conversions

In many circuit applications, we encounter components connected…


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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Phasing

Phasing

Since transformers are essentially AC devices, we need to be aware of…


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Network Topology

Network Topology

Point-to-Point Connecting two digital devices with a network, would…


Textbook

Unit Conversion Calculator

Unit Conversion Calculator

Convert to and from different units of length, weight, power, temperature and torque


Tools

The Quadratic Formula

The Quadratic Formula

Solving for x in a given polynomial equation “ax2 + bx + c…


Textbook

Ohm’s Law Practice Worksheet With Answers

Ohm’s Law Practice Worksheet With Answers

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


Worksheets - Cooling

Class C BJT Amplifiers

Class C BJT Amplifiers

A common class of operation used in radio-frequency (RF) amplifier…


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Solid-state Relays

Solid-state Relays

Limitations of Electromechanical Relays As versatile as…


Textbook

Temperature Coefficient of Resistance

Temperature Coefficient of Resistance

It is a common phenomenon for the electrical resistance of a substance…


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Finite State Machines

Finite State Machines

Up to now, every circuit that was presented was a combinatorial…


Textbook

Capacitor Quirks

Capacitor Quirks

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


Textbook