Compared to an insulator, the energy gap of a semiconductor is:
A)much smaller
B)about the same
C)much larger
D)full of holes
E)full of charge carriers

Question

Quizplus · Accepted Answer

Compared to an insulator, the energy gap of a semiconductor is much smaller. In a semiconductor, the energy gap is small enough that electrons can be excited to the conduction band by thermal energy or by absorbing light, but large enough that the material still behaves as an insulator at low temperatures. This property makes semiconductors useful for electronic devices such as transistors and solar cells.

Compared to an Insulator, the Energy Gap of a Semiconductor