A silicon semiconductor will transmit electrical current
A) by electrons and holes.
B) only by electrons.
C) only by holes between electrons.
D) only if the silicon is doped with phosphorous
E) when the material is frozen.

Question

Quizplus · Accepted Answer

In a silicon semiconductor, electrical current is transmitted by the movement of both electrons and holes. Electrons carry negative charge and move from areas of high concentration to areas of low concentration, while holes carry positive charge and move in the opposite direction. Doping with phosphorous, which creates an excess of electrons, can increase electrical conductivity, but it is not necessary for current transmission. Freezing the material may affect its properties, but it is not necessary for current transmission either.

A Silicon Semiconductor Will Transmit Electrical Current