Transformer core
A transformer core serves the following three important purposes: Provides mechanical support to the windings.Provides a low reluctance closed ferromagnetic path to the magnetic flux.Reduces the losses due to flux…
Transistors – Learn all about transistors
A transistor is an electronic semiconductor device that is used in the circuit to control, regulate and amplify electrical voltage or current signals. Nowadays, silicon is predominantly used as the…
Diode ratings – How to understand a diode datasheet?
Datasheets released by diode manufacturers contain a number of diode ratings. In order to select diodes for an application, it is important to understand all the ratings listed in the…
What is PIV rating in a diode?
PIV stands for 'Peak Inverse Voltage'. It refers to the maximum reverse bias voltage a semiconductor diode or other semiconductor devices can withstand without damaging themselves. The peak inverse voltage…
Hysteresis loss and Eddy current loss and their difference
In electric machines, a varying magnetic field causes eddy currents in all metallic parts and hysteresis in ferromagnetic core. The losses caused due to eddy currents are known as eddy…
P-N Junction Diodes
What is a diode? A diode is an electrical component that allows the current to flow in only one particular direction. Diodes are made up of silicon and germanium. They…
Zener diodes – Operation, Symbol and V-I Characteristics
What are zener diodes? Zener diodes are silicon semiconductor devices that can allow the passage of current in both forward and reverse directions. Unlike p-n junction diodes, they are designed…
Difference between resistance and impedance
When we speak about DC electricity, resistance is the term used to refer to opposition to current flow whereas impedance is the term used in AC electricity. Impedance is basically…
Difference between EMF and Voltage
The difference between EMF and voltage is that the EMF is the potential difference measured across a power source without load connected to it whereas voltage is the potential difference…
Difference between volts and amps | Volts vs amps
Volts and amps or ampere are two measures of electricity. Specifically, voltage is the measure of electric potential difference between two points whereas ampere is the measure of electric current.…
