Polarization is a dielectric state when every unit of a dielectric volume has its electrical moment. There are two types of polarisation - occurring…
Author: Editor
Shift current – conductivity of dielectrics
The polarisation processes of charge shift, until the equilibrium state of dielectrics, are followed by shift current (polarisation currents). Shift currents of elastic bounded…
Dielectric losses
Dielectric losses is the electrical power that is wasted by heating the dielectric in the electric field. Energy losses occur at the constant and…
Dielectric breakdown
A dielectric in electromagnetic fields can lose its insulator properties if the field exceeds some critical value. The phenomena of the formation of a…
Quiz
What types of electric current conductors exist? What is the physical meaning of Fermi level? What is the temperature resistance coefficient? What are the…
A temperature check on the state of education technology
At last week’s Bett Show Helen Moran, Director, Shift Learning, a research agency specialising in education technology, unveiled the results of the company’s Bett…
The concept of electric circuits
Electric circuits and electromagnetic field theory are essential for any electrical engineering field. Many branches such as power machines, electronics, communications and all modern…
Charge / electrical current
This post answers the question "What is the definition of electric charge?". The concept of charge is a basic one to explain the phenomena…
Voltage / power
To move an electrical charge in a specific direction you need to apply some force. This force is called by an external electromotive force…
Electric circuit elements / active elements
A circuit is an interconnection of circuit elements. And analysing circuits we determine voltages and currents through the circuit elements. Let's assume that all…