Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 14 - Heat - Questions: 17

Answer

I provides more surface area to have contact with air.

Work Step by Step

The heat sink’s fins increase the surface area, so there is more convection cooling of the chip. In other words, with the fins, more air contacts the heat sink than would contact it otherwise. Often, a cooling fan is provided to make the convection process even more efficient.
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