To get n-type doped semiconductor, impurity to be added to silicon should have number of valence electrons equal to:
How many valence electrons are required in impurity, to be added to silicon, to get an an n-type semiconductor?
To get a n-type semiconductor from silicon, it should be doped with a substance with valency ...................
(a) 2 (b) 1 (c) 3 (d) 5