Electronics Area – Electrical and Electronics Tutorials and Circuits
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Electrical and Electronics Tutorials and Circuits
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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
Equivalent value of a set of inductors that are connected in series or parallel. These are the simplest methods to calculate the values (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
Logic Probe using two transistors
This Two Transistor Logic Probe is a very simple circuit that can be implemented using two NPN bipolar transistors (T1, T2) in a Darlington configuration.
What’s the Difference between Analog and Digital?
Difference between Analog and Digital. Digital refers to a discrete quantity. Analog refers to the quantities that vary with time on an ongoing basis.
Capacitor Discharging Process (RC circuit)
Capacitor discharge process. In a series RC circuit, a capacitor voltage Vc decreases from the initial voltage on the capacitor to 0 volts in some amount of time.