AExE01 · Chapter 1Basic Electrical & Electronics🏛️ Past Licensure QuestionID: 087ff397
Intrinsic semiconductors are those:
Intrinsic semiconductors are those:
Multiple Choice Options
- A
Which have zero energy gap
- B
Which have more electrons than holes
- C✓ Correct Option
Which are made of semiconductor material in its purest form
- D
Which are available locally
Detailed Technical Solution & Explanation
An intrinsic semiconductor is a pure semiconductor without any intentional doping or significant defect concentrations (e.g., pure Silicon or Germanium with thermal carrier concentration ).
Option Analysis:
•
Option A (Which have zero energy gap): Incorrect. Zero band gap characterizes conductors (metals), not semiconductors.
•
Option B (Which have more electrons than holes): Incorrect. In intrinsic semiconductors, electron and hole concentrations are strictly equal (); excess electrons define N-type extrinsic material.
•
Option C (Which are made of semiconductor mater...): Correct. Undoped, pure semiconductor crystal represents intrinsic material.
•
Option D (Which are available locally): Incorrect. Irrelevant non-technical distractor.
Reference: Mock Test 03NEC Licensure Syllabus