Electrons in a full band do not contribute to the current when an electric field exists in a solid because:
A)the field cannot exert a force on them
B)the individual contributions cancel each other
C)they are not moving
D)they make transitions to other bands
E)they leave the solid

Question

Quizplus · Accepted Answer

Electrons in a full band have full occupancy of available energy states and are not able to move in response to an electric field. Additionally, any contribution from individual electrons would cancel out due to their random motion and distribution within the band.

Electrons in a Full Band Do Not Contribute to the Current