Mesh analysis in a resistor network – Mesh current method in a resistor network.
Mesh current analysis or the mesh current method is a technique used to find the currents circulating around a mesh with in any closed path of a circuit.
Mar 222019
Mar 202019
What is the Impedance of an Inductor?
The impedance of an inductor (also called inductance) is the measure of the opposition to a change of electrical current in this component.
Mar 192019
How to Protect the 500 mA Fuse of a Multimeter?
It is very important to protect the 500 mA fuse of a Multimeter due to the high frequency that these are burned.
Mar 182019
What is the difference between electricity and electronics?
The difference between electricity and electronics or the difference of an electric circuit and an electronic circuit, is that in the electronics circuit, a control is exercised over the flow of the electric current.
Mar 152019
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.
Mar 142019
The Wheatstone bridge circuit
This circuit was designed in 1833 by Samuel Hunter Christie (1784-1865). However, It was Mr. Charles Wheatstone who gave many uses to the Wheatstone bridge circuit when he discovered it in 1843.
Mar 132019
How to extend the voltage range of an analog Multimeter?
In order to extend the voltage range of an analog multimeter, a resistor is used. This resistor is placed in series with the multimeter.
Mar 122019
Resistors in series and parallel How to obtain the equivalent resistor value of resistors in series and parallel. Resistors in series To implement a circuit with resistors in series you have to connect one resistor after the other one. (see the image). The equivalent resistor value of the resistors connected in series is equal to the […]
Mar 112019
Logic AND gate The logic AND gate is one of the simplest gates in Digital Electronics. The symbols for a 2 and a 3 input AND gates are shown in the following image. The first one is the symbol of a 2-input AND gate and the second one is the symbol of a 3-input AND gate. 2-input and […]
Mar 042019
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.
Feb 282019
RC Low Pass Filter An RC low pass filter is a circuit made by a resistor and a capacitor connected in series, as shown in the image below. The RC low pass filter allows only the passage of frequencies below a particular frequency called cut-off frequency (Fc) and eliminates frequencies above this frequency. These RC […]
Feb 272019
Series and Parallel Inductors – Series & Parallel equivalent inductance.
On many occasions it is necessary to obtain the equivalent value of a set of inductors that are connected in series or parallel. This are the simplest methods to calculate the values (inductance) of series and parallel inductors.