For a pure semiconductor at room temperature the temperature coefficient of resistivity is determined primarily by:
A)the number of electrons in the conduction band
B)the number of replacement atoms
C)the binding energy of outer shell electrons
D)collisions between conduction electrons and atoms
E)none of the above

Question

Quizplus · Accepted Answer

The temperature coefficient of resistivity in a pure semiconductor at room temperature is primarily determined by the number of electrons in the conduction band. As temperature increases, more electrons gain enough energy to move from the valence band to the conduction band, thereby increasing the conductivity and decreasing the resistivity of the semiconductor.

For a Pure Semiconductor at Room Temperature the Temperature Coefficient