Get premium membership and access questions with answers, video lessons as well as revision papers.

Give the Properties of Semiconductors

      

Give the Properties of Semiconductors

  

Answers


Wilfred
(i) The resistivity of a semiconductor is less than an insulator but more than a conductor.
(ii) Semiconductors have negative temperature co-efficient of resistance i.e. the resistance of a semiconductor decreases with the increase in temperature and vice-versa. For example, germanium is actually an insulator at low temperatures but it becomes a good conductor at high temperatures.
(iii) When a suitable metallic impurity (e.g. arsenic, gallium etc.) is added to a semiconductor, its current conducting properties change appreciably. This property is most important and is discussed later in detail
Wilfykil answered the question on August 13, 2019 at 12:03


Next: Discuss on "Semiconductor" topic
Previous: Name the branch of biology that: (a) Deals with phylogenetic relationship between organisms. (b) Deals with disputed parentage. (c) Would be useful to a beekeeper.

View More Electronics Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions