a: electric current ~
b: a flow of air inside a pipe
What:
"Here's one way to clarify the concepts of electric current and electrical energy: if electric current is like a flow of air inside a pipe, then electrical energy is like sound waves traveling through the pipe, and electrons are like the air molecules. Sound can travel through a pipe only if the pipe is full of air molecules, and electrical energy can flow along a wire only because the wire is full of movable charges."
Useful?
Writer: Not Stated
LCC:
Where:
Date: Mar 16 2014 2:59 PM
# 5343 Critique Analogy