Rankers Physics

Properties of Semiconductors: Practice Problem & Solution

When n-type semiconductor is heated (1989)
Number of electrons increases while that of holes decreases
Number of holes increases while that of electrons decreases
Number of electrons and holes remain same
Number of electrons and holes increases equally

Short Solution (Best for NEET):

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:

When any semiconductor is heated, thermal energy breaks covalent bonds, generating equal numbers of electrons and holes simultaneously. Thus, both electron and hole concentrations increase equally.[cite: 1]

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