Electronics Area – Electrical and Electronics Tutorials and Circuits
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Electrical and Electronics Tutorials and Circuits
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Superposition Theorem – Example
The Superposition Theorem
The Superposition theorem states that the effect of two or more voltage sources in a resistor is equal to the sum of the individual effects of each source taken separately, replacing all the remaining voltage sources with short circuits.
What is Electrical Resistance? Obtaining a material’s resistance
The electrical resistance is a measurement of the opposition that offers a material to the passage of electrons (the electric current)
Semiconductor Diode – Bias – Operation – Diode Types
The semiconductor diode is the simplest semiconductor device and can be found in almost any electronic circuit. Diodes are manufactured with germanium and silicon (the most common).
How to make a Police Style Strobe Light Circuit?
This circuit shows the familiar lights which are used on police cars. It uses a 555 timer as a clock for the 4017B decade counter, two transistors and twelve LEDs
Second Right-Hand Rule – Electromagnetism
Second Right-Hand Rule. When a current flows through a conductive wire, a non-visible effect called the electromagnetic field is generated around it.
How to test Diodes and How to test Transistors using Multimeter?
Method to follow to test a diode or transistor to know if it is working properly
Impedance of a capacitor – Capacitive reactance
The Impedance of a capacitor (Capacitive reactance) is the measure of the opposition to a change of the electrical current in this component.
FET Characteristics (N-channel JFET)
FET characteristics
The N-channel JFET consists of a silicon bar of N-type semiconductor with two P type regions on both sides. JFET is a tri-terminal device whose terminals are called drain, source and gate.
First Right Hand Rule
The First Right-hand Rule or (Magnetic Force induced on a Current-Carrying Wire) says that if a current-carrying wire is in the presence of a magnetic field, a force is exerted on the wire.
RC Low Pass Filter
An RC low pass filter allows only the passage of frequencies below the cut-off frequency (Fc) and eliminates frequencies above this frequency.
Series and Parallel Inductors
The equivalent value of a set of inductors connected in series or in parallel. These are the simplest methods for calculating the inductance of series and parallel inductors.
How to Make a Car Temperature Alarm using 741 and 555 ICs?
How to make a car temperature alarm?
This car temperature alarm check the car engine temperature and warns us, by means of a sound signal, when the temperature exceeds a seted value