Rankers Physics

Properties of Semiconductors: Practice Problem & Solution

In a n-type semiconductor, which of the following statement is true? (2013)
Holes are majority carriers and trivalent atoms are dopants
Electrons are majority carriers and trivalent atoms are dopants
Electron are minority carriers and pentavalent atoms are dopants
Holes are minority carriers and pentavalent atoms are dopants

Solution Explained:

To solve this problem, we apply the core principles of Properties of Semiconductors. Understanding the underlying formula is key to arriving at the correct answer below:

In an n-type semiconductor, pentavalent atoms are added as dopants, making electrons the majority charge carriers. Consequently, holes become the minority charge carriers.[cite: 1]

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