It simulates the unlocking of a room/door without physical contact
This section of the TI Precision Labs - Isolation series explores three-phase power factor…
This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
Suppose we had a simple one-battery, one-lamp circuit controlled by a…
PARTS AND MATERIALS Two 6-volt batteries One NPN transistor—models…
What is the purpose of the switch shown in this schematic diagram?
Don’t just sit there! Build something!! Learning to mathematically…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
Don’t just sit there! Build something!! Learning to mathematically…
Electromechanical watt-hour meters use an aluminum disk that is spun…
Don’t just sit there! Build something!! Learning to mathematically…
What is the purpose of a seven-segment decoder circuit? What is a…
Don’t just sit there! Build something!! Learning to mathematically…
An LED resistance calculator is perfect for when you have a single LED and need to know which resistor you should use.
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
If we were to express the series-connected DC voltages as phasors…
Schottky diodes Schottky diodes are constructed of a metal-to-N…
Don’t just sit there! Build something!! Learning to mathematically…
A technician uses a stroboscope to “freeze” the rotation of a…
PARTS AND MATERIALS 4017 decade counter/divider (Radio Shack catalog…
It is fairly important to use large value resistors (10 MΩ works…
PARTS AND MATERIALS Several 10 kΩ resistors One 10 kΩ…
Another variation on a theme of bistable multivibrators is the J-K…
Contributors to this chapter are listed in chronological order of…
PARTS AND MATERIALS 4011 quad NAND gate (Radio Shack catalog #…
When calculating the power dissipation of resistive components, use…
In the course of learning about electricity, you will want to…
Reactive Power We know that reactive loads such as inductors and…
What is Attenuators? Attenuators are passive devices. It is…
PARTS AND MATERIALS One 9V Battery Battery Clip (Radio Shack catalog #…
Don’t just sit there! Build something!! Learning to mathematically…
When an alternator produces AC voltage, the voltage switches polarity…
Consider a circuit for a single-phase AC power system, where a 120…
What would happen to this meter movement, if connected directly to a…
Protective relays are special power-sensing devices whose job it is to…
In the last section, we saw how the 3rd harmonic and all of its…
Has the system ever worked before? If yes, has anything happened to…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
This calculator helps you compute the inductance of a wire-over-plane setup.
Most ohmmeters of the design shown in the previous section utilize a…
