Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:
In n-type semiconductor, electrons are majority charge carriers but it does not show any negative charge. What is the reason for this?
Options:
electrons are stationary
electrons neutralize with holes
mobility of electrons is extremely small
atom is electrically neutral
Correct Answer:
atom is electrically neutral
Explanation:
As atoms are electrically neutral, the total charge on a doped semiconductor is zero.