In a PN junction, what is the region called where no charge carriers are present
Practice Questions
Q1
In a PN junction, what is the region called where no charge carriers are present? (2019)
Depletion region
Conduction band
Valence band
Neutral zone
Questions & Step-by-Step Solutions
In a PN junction, what is the region called where no charge carriers are present? (2019)
Step 1: Understand what a PN junction is. A PN junction is formed when a P-type semiconductor (which has positive charge carriers) is joined with an N-type semiconductor (which has negative charge carriers).
Step 2: Recognize that when the P-type and N-type materials are joined, some charge carriers (electrons and holes) move across the junction.
Step 3: Identify that as these charge carriers move, they leave behind an area that has no free charge carriers.
Step 4: This area with no free charge carriers is called the depletion region.
