A switch can be constructed with any mechanism bringing two conductors…
Don’t just sit there! Build something!! Learning to mathematically…
Any kind of switch contact can be designed so that the contacts…
Before the advent of solid-state logic circuits, logical control…
Protective relays are special power-sensing devices whose job it is to…
A special type of relay is one that monitors the current, voltage,…
Counting practice: count from zero to thirty-one in binary, octal, and…
Most students of electricity begin their study with what is known as…
Counting practice: count from zero to thirty-one in binary, octal, and…
PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…
Generators used in battery-charging systems must be regulated so as to…
A bistable multivibrator has two stable states, as indicated by the…
A practical application of switch and relay logic is in control…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
What do you think this logic buffer gate will do, with the output…
Though it may seem strange to cover the elementary topic of electrical…
In ladder logic symbolism, an electromechanical relay coil is shown as…
Don’t just sit there! Build something!! Learning to analyze digital…
What does the normal status of an electrical switch refer to?…
Ladder diagrams are specialized schematics commonly used to document…
Before the advent of solid-state logic circuits, logical control…
Don’t just sit there! Build something!! Learning to analyze digital…
A switch can be constructed with any mechanism bringing two conductors…
A practical application of switch and relay logic is in control…
Don’t just sit there! Build something!! Learning to mathematically…
Charles Proteus Steinmetz’s first job after arriving in America…
A special type of relay is one that monitors the current, voltage,…
The interlock contacts installed in the previous section’s motor…
Don’t just sit there! Build something!! Learning to mathematically…
Most ohmmeters of the design shown in the previous section utilize a…
Electromechanical watt-hour meters use an aluminum disk that is spun…
A wound rotor induction motor has a stator like a squirrel cage…
How is it possible to electrically measure the torque output by a…
Most students of electricity begin their study with what is known as…
SCRs are unidirectional (one-way) current devices, making them useful…
Protective relays are special power-sensing devices whose job it is to…
AC Motors Perhaps the most important benefit of polyphase AC power…
PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) Two…
What is an Insulated Gate Bipolar Transistor (IGBT), and what…
What does the normal status of an electrical switch refer to?…
The Law of Sines (for any triangle) The Law of Cosines (for any…
What Is a Zener Diode? A Zener diode is a special type of rectifying…
Don’t just sit there! Build something!! Learning to analyze digital…
Value of time constant in series RC and RL circuits Time…
PARTS AND MATERIALS One NPN transistor—model 2N2222 or 2N3403…
An important electrical quantity with no equivalent in DC circuits is…
This tool is designed to calculate the inductance of two parallel wires
PARTS AND MATERIALS Four 6-volt batteries 12-volt light bulb, 25 or 50…
The voltage divider is a circuit used to create a voltage less than or equal to the input voltage.
If a sinusoidal voltage is applied to an impedance with a phase angle…
All entries arranged in alphabetical order of surname. Major…
PARTS AND MATERIALS Calculator (or pencil and paper for doing…
With the notable exception of calculations for power (P), all AC…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
The armature windings of your DC motor will have very low resistance.…
A voltage multiplier is a specialized rectifier circuit…
Project Parts and Materials Automotive alternator (one required, but…
Calculate circuit parameters using Ohm's Law
Definition of a Radical Given the expression where “x” is…
We know that the current in a series circuit may be calculated with…
