The Inclusion of a Small Amount of Aluminum in a Crystal

question 25

Multiple Choice

The inclusion of a small amount of aluminum in a crystal of pure germanium yields what kind of semiconductor?

• A) an insulator
• B) an amorphous solid
• C) n-type, in which extra electrons carry the current
• D) p-type, in which a deficiency of electrons carries the current
• E) p-n-p type

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