True or false about semiconductors

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   An intrinsic semiconductor has equal electrons and holes.

2. Statement is true

   No

   Statement

   A pentavalent dopant makes p-type material.

3. Statement is true

   Yes

   Statement

   One acceptor atom supplies exactly one hole.

4. Statement is true

   No

   Statement

   A band gap over 3 eV marks a good conductor.

5. Statement is true

   Yes

   Statement

   Doping produces an extrinsic semiconductor.

Instructions

Decide whether each statement is true or false.

Explanation