Brushless DC motors were developed from conventional brushed DC motors…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
Project Parts and Materials Automotive alternator (one required, but…
A three-phase motor may be run from a single-phase power source.…
As an electric current is passed through a coil of wire, it creates a…
Just as devices have been made to measure certain physical quantities…
A tool designed to calculate the maximum speed, minimum time per step and maximum power of a stepper motor
Shaded Pole Induction Motor An easy way to provide starting torque to…
PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF 120VAC…
Charles Proteus Steinmetz’s first job after arriving in America…
PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF (or…
How is it possible to electrically measure the torque output by a…
Most AC motors are induction motors. Induction motors are favored due…
The interlock contacts installed in the previous section’s motor…
Single Phase Synchronous Motors Single-phase synchronous motors are…
After the introduction of the DC electrical distribution system by…
Electromechanical watt-hour meters use an aluminum disk that is spun…
A wound rotor induction motor has a stator like a squirrel cage…
If the ends of a wire loop are attached to two half-circular metal…
A tool designed to convert between units of torque
An important electrical quantity with no equivalent in DC circuits is…
Given two lengths of metal wire, which one will have the least…
PARTS AND MATERIALS One NPN transistor—model 2N2222 or 2N3403…
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Feedback is a fascinating engineering principle. It can turn a rather…
This calculator will help compute the inductance of a length of wire.
Wiring for AC and DC power distribution branch circuits are color…
What do each of the oscilloscope axes represent, in real-life terms…
PARTS AND MATERIALS Three batteries, each one with a different…
What does it mean if an integrated circuit comes in DIP form? What…
PARTS AND MATERIALS Paper tube, from a toilet-paper roll Bar of iron…
Don’t just sit there! Build something!! Learning to mathematically…
Identify some different ways you can create the sine-wave audio tracks…
After the introduction of the DC electrical distribution system by…
PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF 120VAC…
The Voltage Gain Because amplifiers have the ability to increase the…
A bistable multivibrator has two stable states, as indicated by the…
Ampacities of copper wire, in free air at 30o C:…
What is the difference between DC and AC electricity? Identify some…
The manufacture of only silicon based semiconductors is described…
