Q. The temperature of germanium is decreased from room temperature to 100 K, the resistance of germanium
A) Decreases
B) Increases
C) Unaffected
D) Depends on external conditions
Explanation
(b) Germanium is a semiconductor and possesses negative temperature coefficient. Therefore, when temperature of germanium is decreased its resistance increases.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.