Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

The transistor will work as a switch when it operates:

Options:

In Active region only

In cut off region and active region

In saturation region and active region

In cut off region and saturation region

Correct Answer:

In cut off region and saturation region

Explanation:

The correct answer is Option (4) → In cut off region and saturation region

A transistor acts as a switch when it operates in either the saturation or cut off region.

  • Saturation Region - Transistor is fully on.
  • Cut-off Region - Transistor is fully off.