If a small amount of antimony is added to germanium crystal,
A
the antimony becomes an acceptor atom
B
there will be more free electrons than holes in the semiconductor
C
its resistance is increased
D
it becomes a 
-type semiconductor
-type semiconductor
Text Solution
Verified by ExpertsThe correct answer is:
B
When a small amount of antimony is added to germanium crystal, the crystal becomes 
-type semiconductor, because antimony is a pentavalent substrate and act as donor atom. So, there will be more free electrons than holes in the semiconductor.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
To obtain -type semiconductor, we need to dope pure Si with
If and represent the number of free electrons density and holes density respectively in a semicon…
An -type and -type silicon can be obtained by doping pure silicon with
Let and be the number of holes and conduction electrons respectively in a semiconductor, then
In -type semiconductor, the majority and minority charge carriers are respectively
The electrical resistance of which of the following decreases with rise in temperature?