a: insulator ~
b: a pipe that's frozen
What:
"Think of water flowing through a pipe, an insulator is like a pipe that's frozen: electrons can't get through. Semiconductors are materials that change from free-flowing conductor to a frozen insulator and back again, simply by zapping them with an electric current."
A very good link this is....
Useful?
Writer: DAVID POGUE
LCC:
Where:
Date: Jan 26 2019 11:17 AM
# 12063 Critique Analogy