In a n-type semiconductor, which of the ...

In a `n`-type semiconductor, which of the following statement is true?

Electrons are majority carriers and trivalent atoms are the dopants.

Electrons are minority carriers and pentavalent atoms are the dopants.

Holes are minority carriers and pentavalent atoms are the dopants.

Holes are majority carriers and trivalent atoms are the dopants.

Text Solution

Verified by Experts

The correct statement is (c).
In an-type silicon, the electrons are the majority carriers, while the holes are the minority carriers. An n-type semiconductor is obtained when pentavalent atoms, such as phosphorus, are doped in silicon atoms.

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Regarding p-type and n-type semiconductors, which of the following statements is true?

n-type semiconductors have free electrons in majority.

n-type semiconductors have holes in majority.

The concentration of electrons and holes are equal in both n-type and p-type semiconductors.

n-type semiconductor is obtained by doping with trivalent impurity.

For a p-type semiconductor, which of the following statements is true?

Electrons are the majority carriers and pentavalent atoms are the dopants.

Electrons are the majority carriers and trivalent atoms are the dopants.

Holes are the majority carriers and trivalent atoms are the dopants.

Holes are the majority carriers and pentavalent atoms are the dopants.

For a, p- type semiconductor, which of the following statements is true?