Semiconductor MCQ Quiz Semiconductor Electronics MCQ Quiz 1. At absolute zero temperature, intrinsic semiconductor behaves as: Superconductor Perfect insulator Good conductor Metal Correct Answer: B — No free electrons at 0K. 2. Negative temperature coefficient material: Copper Silver Silicon Aluminium Correct Answer: C — Resistance decreases with temperature. 3. p-type doping impurity: Phosphorus Arsenic Antimony Indium Correct Answer: D — Trivalent impurity. 4. n-type semiconductor is electrically: Positive Negative Neutral Polarized Correct Answer: C — Total charge remains balanced. 5. Depletion layer width: Increases forward bias Decreases reverse bias Decreases forward bias Independent Correct Answer: C — Forward bias reduces barrier. 6. Largest energy gap: Conductors Semiconductors Insulators Alloys Correct Answer: C — Large gap prevents conduction. 7. Diffusion current due to: External field Concentration gradient Drift Temperature only Correct Answer: B — Movement from high to low concentrat…
