For which substance among the following, conductivity increases with…
2018
For which substance among the following, conductivity increases with temperature?
- A.
Copper
- B.
Germanium
- C.
Silver
- D.
Iron
Attempted by 35 students.
Show answer & explanation
Correct answer: B
Conductivity of semiconductors increases with temperature because more charge carriers become available. Germanium is a semiconductor, unlike copper, silver and iron, which are metals.