A strip of copper and another of germanium are cooled from room temperature to 80K. The resistance of

Question:

A strip of copper and another of germanium are cooled from room temperature to $80 \mathrm{~K}$. The resistance of

  1. each of these decreases

  2. copper strip increases and that of germanium decreases

  3. copper strip decreases and that of germanium increases

  4. each of these increases

Correct Option: 3

JEE Main Previous Year 1 Question of JEE Main from Physics Semiconductor Electronics : Materials, Devices and Simple Circuits chapter.
JEE Main Previous Year 2003

Solution:

Leave a Reply

Your email address will not be published. Required fields are marked *

error: Content is protected !!