Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:
Which of the following is correct when electric field is applied across a semiconductor?
Options:
Electrons move from lower energy level to higher energy level in conduction band
electrons move from higher energy level to lower energy level in conduction band.
holes in the valence band move from lower energy to higher energy level.
None
Correct Answer:
Electrons move from lower energy level to higher energy level in conduction band
Explanation:
On application of e-field across a semiconductor, electrons move from lower energy level in conduction band to higher energy level while holes move from higher energy level in valence band.