Charles Proteus Steinmetz’s first job after arriving in America…
Just as devices have been made to measure certain physical quantities…
All About Contactors When a relay is used to switch a large amount of…
Calculate the voltage output by the secondary winding of a transformer…
Don’t just sit there! Build something!! Learning to analyze digital…
Shaded Pole Induction Motor An easy way to provide starting torque to…
The variable reluctance motor is based on the principle that an…
Electromechanical watt-hour meters use an aluminum disk that is spun…
Brushless DC motors were developed from conventional brushed DC motors…
If the ends of a wire loop are attached to two half-circular metal…
A three-phase motor may be run from a single-phase power source.…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
Pulse Width Modulation (PWM) uses digital signals to control power…
Don’t just sit there! Build something!! Learning to mathematically…
A wound rotor induction motor has a stator like a squirrel cage…
At first it may seem pointless to have the four buffer gates following…
Most AC motors are induction motors. Induction motors are favored due…
The armature windings of your DC motor will have very low resistance.…
Most students of electricity begin their study with what is known as…
A tool designed to convert between units of torque
Perhaps the most challenging aspect of interpreting ladder diagrams,…
This calculator calculates the resistivity of a component based on its resistance value, length, and cross-sectional area.
SCRs are unidirectional (one-way) current devices, making them useful…
PARTS AND MATERIALS 6 volt battery Power transformer, 120VAC step-down…
Let’s take the same components for our series example circuit…
Many different equations used in the analysis of electric circuits may…
Radio waves are comprised of oscillating electric and magnetic fields,…
What is Rectification? Now we come to the most popular application of…
In the course of learning about electricity, you will want to…
Synchronous motors load the power line with a leading power factor.…
You might have noticed on the table for specific resistances that all…
Constant rule Rule of sums Rule of differences Product rule Quotient…
PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) Two…
PARTS AND MATERIALS Two 6-volt batteries Three NPN…
Digital computers communicate with external devices through ports:…
PARTS AND MATERIALS 6-volt battery Electromagnet made from experiment…
Suppose we altered our basic open-collector inverter circuit, adding a…
Don’t just sit there! Build something!! Learning to mathematically…
Designing Wire Resistance Conductor ampacity rating is a crude…
A mathematician named DeMorgan developed a pair of important rules…
