After the introduction of the DC electrical distribution system by…
Most AC motors are induction motors. Induction motors are favored due…
Generators used in battery-charging systems must be regulated so as to…
The variable reluctance motor is based on the principle that an…
If an electric current is passed through this wire, which direction…
Electromechanical watt-hour meters use an aluminum disk that is spun…
Normally, the rotor windings of a wound rotor induction motor are…
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.…
Charles Proteus Steinmetz’s first job after arriving in America…
Brushless DC motors were developed from conventional brushed DC motors…
Stepper Motor vs Servo Motor A stepper motor is a…
Single Phase Synchronous Motors Single-phase synchronous motors are…
Most students of electricity begin their study with what is known as…
Just as devices have been made to measure certain physical quantities…
Explain the operation of this “H-bridge” motor control circuit: At…
Single Phase Synchronous Motors Single-phase synchronous motors are…
Explain the operation of this “H-bridge” motor control circuit: At…
As an electric current is passed through a coil of wire, it creates a…
How is it possible to electrically measure the torque output by a…
A chandelier has five light bulbs in it, and one of them is not…
Don’t just sit there! Build something!! Learning to mathematically…
Solid-state switching circuits usually keep their constituent…
If an electric current is passed through this wire, which direction…
Shaded Pole Induction Motor An easy way to provide starting torque to…
After the introduction of the DC electrical distribution system by…
Read the following quotation, and then research the term…
Most students of electricity begin their study with what is known as…
Don’t just sit there! Build something!! Learning to mathematically…
A very useful tool for observing rotating objects is a strobe light.…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
Electromechanical watt-hour meters use an aluminum disk that is spun…
PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…
AC Motors Perhaps the most important benefit of polyphase AC power…
Most AC motors are induction motors. Induction motors are favored due…
Brushless DC motors were developed from conventional brushed DC motors…
Diodes can perform switching and digital logic operations. Forward and…
Don’t just sit there! Build something!! Learning to mathematically…
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PARTS AND MATERIALS Low-voltage AC power supply Bridge rectifier pack…
Series and Parallel Resistances Series and Parallel…
Since complex numbers are legitimate mathematical entities, just like…
Single Phase Synchronous Motors Single-phase synchronous motors are…
Label where each of the following electrical quantities would be found…
SPICE is a computer program designed to simulate analog electronic…
It is a common phenomenon for the electrical resistance of a substance…
In mathematics, an identity is a statement true for all possible…
By now you should be well aware of the correlation between electrical…
In instrumentation circuitry, DC signals are often used as analog…
While mention of operational amplifiers typically provokes visions of…
Don’t just sit there! Build something!! Learning to analyze digital…
PARTS AND MATERIALS 6 volt battery Power transformer, 120VAC step-down…
What is an Encoder? An encoder is a circuit that changes a set of…
Note that the direction of the arrow at the gate indicates the…
Safety is very important when designing and/or building a device…
In our study of AC circuits thus far, we’ve explored circuits…
