In this hands-on electronics experiment, you will use a potentiometer as a variable resistor to control the speed of a motor and learn how to connect a potentiometer as a rheostat.
This calculator will determine the combined Lorentz force exerted on a charged particle moving through both an electric field and a magnetic field.
Generators used in battery-charging systems must be regulated so as to…
A chandelier has five light bulbs in it, and one of them is not…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
Electromechanical watt-hour meters use an aluminum disk that is spun…
Calculate the voltage output by the secondary winding of a transformer…
With this lesson, I hope to avoid a common mistake found in…
Suppose a 12 volt lead-acid battery has an internal resistance of 20…
In simple AC power systems, one of the two conductors is typically…
The Q factor of a series inductive circuit is given by the following…
After applying some of the general troubleshooting tips to narrow the…
This calculator will determine the combined Lorentz force exerted on a charged particle moving through both an electric field and a magnetic field.
Normally, the rotor windings of a wound rotor induction motor are…
The interlock contacts installed in the previous section’s motor…
The variable reluctance motor is based on the principle that an…
Shaded Pole Induction Motor An easy way to provide starting torque to…
Stepper Motor vs Servo Motor A stepper motor is a…
Charles Proteus Steinmetz’s first job after arriving in America…
What does the acronym RF stand form, in reference to radio-related…
In this hands-on electronics experiment, build an audio amplifier using a vacuum tube (triode) and learn about voltage transformers, how to build a high-voltage DC power supply, and how to use a transformer for impedance matching.
Most AC motors are induction motors. Induction motors are favored due…
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Anyone who’s studied geometry should be familiar with the…
By definition, a low-pass filter is a circuit offering easy passage to…
In the last section, we learned what would happen in simple…
Fundamentally, an amplifier is a device that takes in a low-power…
Metric Prefixes Yotta = 1024 Symbol: Y Zetta = 1021 Symbol: Z…
(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…
What Is an Instrumentation Amplifier? An instrumentation amplifier…
It is sometimes useful in logic circuits to have a multivibrator which…
When analyzing complex series and parallel circuits, it is easy to…
A tool designed to calculate the noise figure of cascaded amplifiers
In addition to voltage and current, there is another important…
Passive Devices Components incapable of controlling current by means…
A calculator for computing the impedance of a wire stripline.
What would happen to this meter movement, if connected directly to a…
In this hands-on AC electronics experiment, build a variable conductor and learn the impact of a metal core placed inside an inductor coil has on the inductance.
This calculator helps determine the maximum temperature a device can withstand
In this hands-on electronics experiment, you will build an op amp voltage follower and learn about negative feedback in operational amplifier circuits.
A meter is any device built to accurately detect and display an…
