Perhaps the most challenging aspect of interpreting ladder diagrams,…
How is it possible to electrically measure the torque output by a…
Counting practice: count from zero to thirty-one in binary, octal, and…
Any kind of switch contact can be designed so that the contacts…
Most students of electricity begin their study with what is known as…
Don’t just sit there! Build something!! Learning to analyze digital…
Don’t just sit there! Build something!! Learning to mathematically…
A practical application of switch and relay logic is in control…
The interlock contacts installed in the previous section’s motor…
Though it may seem strange to cover the elementary topic of electrical…
In ladder logic symbolism, an electromechanical relay coil is shown as…
Since three-phase is used so often for power distribution systems, it…
Generators used in battery-charging systems must be regulated so as to…
Don’t just sit there! Build something!! Learning to mathematically…
Before the advent of solid-state logic circuits, logical control…
As we saw with DC measurement circuits, the circuit configuration…
What do you think this logic buffer gate will do, with the output…
Protective relays are special power-sensing devices whose job it is to…
All About Contactors When a relay is used to switch a large amount of…
What does it mean, in general terms, to encode something? Conversely,…
Since three-phase is used so often for power distribution systems, it…
If the ends of a wire loop are attached to two half-circular metal…
PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…
Transformers with Multiple Secondaries Transformers are very versatile…
Complementary Output Gates It is sometimes desirable to have a logic…
The variable reluctance motor is based on the principle that an…
As we saw with DC measurement circuits, the circuit configuration…
We can construct a simple logic functions for our hypothetical lamp…
A bistable multivibrator has two stable states, as indicated by the…
Pulse Width Modulation (PWM) uses digital signals to control power…
The structure behind ladder logic is based on the electrical ladder…
Don’t just sit there! Build something!! Learning to mathematically…
PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…
PARTS AND MATERIALS Steel flat bar, 4 pieces Miscellaneous bolts,…
All About Contactors When a relay is used to switch a large amount of…
It is very important to keep in mind that the “normal”…
Normally, the rotor windings of a wound rotor induction motor are…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
Every meter impacts the circuit it is measuring to some extent, just…
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PARTS AND MATERIALS One 9V Battery Battery Clip (Radio Shack catalog #…
Note the “50 ohm” rating printed on the jacket of the cable. What…
What is the purpose of a seven-segment decoder circuit? What is a…
Don’t just sit there! Build something!! Learning to mathematically…
A bistable multivibrator has two stable states, as indicated by the…
Having learned about digital memory devices in the last chapter, we…
While Oersted’s surprising discovery of electromagnetism paved…
If the burden of two systems of measurement for common quantities…
If a sinusoidal voltage is applied to an impedance with a phase angle…
Parts and Materials 6-volt battery 6-volt incandescent…
Let’s take the same components for our series example circuit…
Learning Objectives Rheostat use Wiring a potentiometer as a rheostat…
Example Derivatives of e Proportionality Constant When we say that a…
A switch is an electrical component that can “make” or…
This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them.
Shown here is the schematic symbol for a resistor: What is the purpose…
If a pulse-width modulated (PWM) signal is sent to a passive…
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