Multiple choice

Extrinsic semiconductors are the pure semiconductors that have been altered by the presence of:

  1. holes

  2. dopants

  3. power

  4. electrons

  5. transistor
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A dopant, also called a doping agent, is a trace impurity element that is inserted into a substance (in very low concentrations) in order to alter the electrical properties or the optical properties of the substance.

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