Quick picks on semiconductors

Exercise and reference answers

Questions

1. Question

   Closely spaced levels in a solid form:

   Choices

   1. Energy bands
   2. Energy orbits
   3. Energy shells

   Correct choice

   Energy bands

2. Question

   Adding a chosen impurity is called:

   Choices

   1. Coating
   2. Doping
   3. Casting

   Correct choice

   Doping

3. Question

   A doped semiconductor is called:

   Choices

   1. Intrinsic
   2. Insulating
   3. Extrinsic

   Correct choice

   Extrinsic

4. Question

   Arsenic and phosphorus are dopants that are:

   Choices

   1. Pentavalent
   2. Trivalent
   3. Univalent

   Correct choice

   Pentavalent

5. Question

   Boron and indium are dopants that are:

   Choices

   1. Pentavalent
   2. Trivalent
   3. Univalent

   Correct choice

   Trivalent

Instructions

Tap the correct answer before the round moves on.

Explanation