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In a \(\mathrm{n\text{-}}\)type silicon, which of the following statement is true:

1.	The electrons are majority carriers and trivalent atoms are the dopants.
2.	The electrons are minority carriers and pentavalent atoms are the dopants.
3.	The holes are minority carriers and pentavalent atoms are the dopants.
4.	The holes are majority carriers and trivalent atoms are the dopants.

Subtopic: Types of Semiconductors |

78%

Level 2: 60%+

Hints

In an unbiased \(\mathrm{p\text-n}\) junction, holes diffuse from the \(\mathrm{p\text-}\)region to the \(\mathrm{n\text-}\)region because:

1.	free electrons in the \(\mathrm{n\text-}\)region attract them.
2.	they move across the junction by the potential difference.
3.	hole concentration in the \(\mathrm{p\text-}\)region is higher as compared to the \(\mathrm{n\text-}\)region.
4.	All the above.

Subtopic: Types of Semiconductors |

Level 3: 35%-60%

Hints