True or false: semiconductors

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Adding a desirable impurity to a semiconductor is called doping.

2. Statement is true

   Yes

   Statement

   Silicon is tetravalent, so it has four valence electrons.

3. Statement is true

   Yes

   Statement

   A junction diode is a two-electrode device.

4. Statement is true

   No

   Statement

   Doping makes a semiconductor a perfect insulator.

Instructions

Decide whether each statement about semiconductors is true or false.

Explanation