Description

Electrical conduction is a transport property, like heat flow and mass flow. It depends on the number of electrons involved and the velocity of those electrons. Electrical conductivity is thus the product of the number of electrons per unit volume free to move and the electron mobility (drift velocity).

Science Notes

More from this issue

In a relatively short space of time, classrooms have become full of computers, gadgets and electronic devices. Technology will only continue to...

Jan 2013
Journal Article

Foams or bubble dispersions are common to milkshakes, bread, champagne froth, shaving mousse, shampoo, crude oil extraction systems, upholstery...

Jan 2013
Journal Article

We devised an experiment for year 13 (age 17 18) students based on the size-dependent colours of gold nanoparticles and linked this to current...

Jan 2013
Journal Article