Electricity and Magnetism An electric current through a conductor will…
As we saw with DC measurement circuits, the circuit configuration…
A switch can be constructed with any mechanism bringing two conductors…
Single Phase Synchronous Motors Single-phase synchronous motors are…
Don’t just sit there! Build something!! Learning to mathematically…
Don’t just sit there! Build something!! Learning to mathematically…
How is it possible to electrically measure the torque output by a…
A special type of relay is one that monitors the current, voltage,…
Though it may seem strange to cover the elementary topic of electrical…
PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…
Normally, the ampacity rating of a conductor is a circuit design…
Brushless DC motors were developed from conventional brushed DC motors…
What is the purpose of the switch shown in this schematic diagram?
Complementary Output Gates It is sometimes desirable to have a logic…
PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…
It is very important to keep in mind that the “normal”…
Suppose you were to take a 3 kW electric heater rated for 240 VAC and…
The discovery of the relationship between magnetism and electricity…
Bipolar junction transistors (Also known as BJTs) can be used as an…
Pulse Width Modulation (PWM) uses digital signals to control power…
Don’t just sit there! Build something!! Learning to mathematically…
A waveguide is a special form of transmission line consisting of a…
PARTS AND MATERIALS Calculator (or pencil and paper for doing…
Define the following acronyms as they apply to digital logic circuits:…
Most ohmmeters of the design shown in the previous section utilize a…
Capacitors Vs. Resistors Capacitors do not behave the same as…
Mutual inductors are inductors that capitalize the effect of mutual…
Like all electrical and electronic components, transistors are limited…
PARTS AND MATERIALS Four 6 volt batteries One capacitor, 100 µF…
This calculator helps you compute the inductance of a coil.
Don’t just sit there! Build something!! Learning to mathematically…
Contributors to this chapter are listed in chronological order of…
This tool is designed to calculate cross-talk coefficient and coupled voltage for a stripline
Factoring Identities : a2 - b2 = (a + b) (a - b) a2 + 2ab + b2…
A three-phase motor may be run from a single-phase power source.…
The bipolar junction transistor (BJT) was named because its operation…
As we’ve seen, negative feedback is an incredibly useful…
Just as devices have been made to measure certain physical quantities…
Calculate the total resistance of resistors in parallel with ease!
“AC” stands for Alternating Current, which can refer to…
In the simplest terms you can think of, define what an electrical…
PARTS AND MATERIALS Two 6-volt batteries One NPN…
With addition being easily accomplished, we can perform the operation…
In an astable circuit, the output voltage alternates between VCC and 0 volts on a continuous basis.
There are three basic factors of capacitor construction determining…
What is an Encoder? An encoder is a circuit that changes a set of…
In this circuit, the electric motor is supposed to turn on whenever…
Safety is very important when designing and/or building a device…
Charles Proteus Steinmetz’s first job after arriving in America…
What Is an XOR Gate? One element conspicuously missing from the set of…
What is an Insulated Gate Bipolar Transistor (IGBT), and what…
PARTS AND MATERIALS Several 10 kΩ resistors One 10 kΩ…
Shown here is the schematic symbol for a resistor: What is the purpose…
Counting practice: count from zero to thirty-one in binary, octal, and…
When lightning strikes, nearby magnetic compass needles may be seen to…
The Mesh-Current Method, also known as the Loop Current Method, is…
A calculator for computing the gain and output voltage of an operational amplifier
Series and Parallel Resistances Series and Parallel…
What does the normal status of an electrical switch refer to?…
This tool calculates the cutoff frequency of a rectangular waveguide
