This post answers the question "What are defects in crystals?". There are no naturally occurring ideal crystals. Every…
Polymorphism
Polymorphism is the ability of solids to form more than one crystalline lattice, that is stable for different…
Energy band theory
Energy band theory is a basis for describing processes and effects in solid crystals under electromagnetic field impact.…
Complex conductance. Active and reactive power
Complex conductance Y is the value, reverse to the complex resistance Z, where Y=1Z=ye-jφ. Complex conductance is measured with…
Young engineers crowned FIRST LEGO League UK champions
A team of young engineers from Wallace Hall Academy in Dumfriesshire, Scotland have been crowned champions of the Institution…
Two-terminal networks in the AC circuit
Let's consider a passive two-terminal network, connected to the input source E. The input resistance in this case…
University of Derby students win national bursary for engineering talent
Three students from the University of Derby have received Engineering Horizons Bursaries from the Institution of Engineering and…
Induction motor
An induction motor is a type of electric machine. Here the stator coils produce a magnetic field, and…
Equivalent two-terminal network
Equivalent two-terminal transformations are transformations that lead to the simplification of complex two-terminal networks with the smallest amount…
Magnetically related networks – transformers
Often networks contain magnetic elements, for example coils, that can create magnetic induction in the other close placed…