The Total solution for NCERT class 6-12
In an n-type silicon, which of the following statement istrue:
(a) Electrons are majority carriers and trivalent atomsare the dopants.
(b) Electrons are minority carriers and pentavalentatoms are the dopants.
(c) Holes are minority carriers and pentavalent atomsare the dopants.
(d) Holes are majority carriers and trivalent atoms arethe dopants.
The correct statement is (c).
In an n-type silicon, the electrons are the majoritycarriers, while the holes are the minority carriers. An n-type semiconductor isobtained when pentavalent atoms, such as phosphorus, are doped in siliconatoms.