This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
Don’t just sit there! Build something!! Learning to mathematically…
In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.
Shown here is the schematic symbol for a resistor: What is the purpose…
What is the purpose of the switch shown in this schematic diagram?
Suppose we had a simple one-battery, one-lamp circuit controlled by a…
A technician uses a stroboscope to “freeze” the rotation of a…
In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.
In this hands-on electronics experiment, build a blue LED flasher using a 555 timer and learn the basic theory of a voltage doubler using a transistor switch and a capacitor.
Don’t just sit there! Build something!! Learning to mathematically…
In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.
It is fairly important to use large value resistors (10 MΩ works…
What is the purpose of a seven-segment decoder circuit? What is a…
In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.
Don’t just sit there! Build something!! Learning to mathematically…
Calculate the equivalent resistance of up to six resistors in parallel with ease while learning how to calculate resistance in parallel and the parallel resistance formula.
In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.
What does it mean for an object to have an electric charge? Give an…
In this hands-on electronics experiment, you will connect batteries in parallel to power a light and learn the relationship between the individual battery currents and the total system current.
Electromechanical watt-hour meters use an aluminum disk that is spun…
In this hands-on electronics experiment, build an oscillator using a 555 timer and learn the theory of operation of the 555 timer when configured as an astable multivibrator.
Inductors have the exact opposite characteristics of capacitors.…
In the design of large and complex digital systems, it is often…
In addition to voltage and current, there is another important…
In order to work with complex numbers without drawing vectors, we…
Previously, we examined series circuits and parallel circuits using…
This calculator determines the wavelength of a signal given the frequency and dielectric constant.
As we saw earlier, a power system with no secure connection to earth…
So far in our discussions on electricity and electric circuits, we…
During the early development of telephone technology, a unit was…
This calculator helps you compute the characteristic impedance of an embedded microstrip.
Suppose we altered our basic open-collector inverter circuit, adding a…
Don’t just sit there! Build something!! Learning to analyze relay…
Temperature coefficient (α) per degree C: Material Element/Alloy…
We can take the same components from the series circuit and rearrange…
As we’ve already learned, electricity requires a complete path…
Explain the principle of operation for the particular integrated…
The field effect transistor was proposed by Julius Lilienfeld in US…
Since Thevenin’s theorem and Norton’s theorems are two…
