a: A capacitor ~
b: a tiny rechargeable battery
What: "A capacitor is like a tiny rechargeable battery. It's so small that it charges in a fraction of a second, before the relay has time to open its lower pair of contacts." On page 62 of the linked text.
Useful?
Writer: Charles Platt
LCC:
Where:
Date: Jul 22 2013 6:28 PM
# 3416 Critique Analogy