A semiconductor is doped with an indium impurity atom. Which of the following statements is true abo

JAMB Physics 2023 262 views
Source: JAMB · 2023

A semiconductor is doped with an indium impurity atom. Which of the following statements is true about the resulting semiconductor?

  1. The semiconductor will have an excess of electrons.
  2. The semiconductor will have an excess of holes. ✓
  3. The semiconductor will have equal numbers of electrons and holes.
  4. The semiconductor will become an insulator.
Explanation

This physics concept involves analyzing the given values and applying relevant formulas. Work through the problem step by step using known equations and constants.

Identify what quantity needs to be found and which formula connects the given information to the answer. Substitute the values carefully, paying attention to units.

Check that your calculated answer matches one of the options provided. Understanding the underlying principle helps verify the solution makes physical sense.

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