When a piece of copper and another of germanium are cooled from room temperature to 800 K then the resistance of -

Copper increases and germanium decreases

Copper decreases and germanium increases

When a piece of copper and another of germanium are cooled from room t

1.	When a piece of copper and another of germanium are cooled from room temperature to 800 K then the resistance of -
A.	Each of them increases
B.	Each of them decreases
C.	Copper increases and germanium decreases
D.	Copper decreases and germanium increases
Answer» E.