Register
Question 1
Under thermal equilibrium, the product of electron and hole concentrations in a semiconductor is equal to the square of its intrinsic carrier concentration (ni^2). If a silicon sample at 300 K has an intrinsic carrier concentration of 1.5 x 10^10 cm^-3 and is doped with donor atoms to a concentration of 1 x 10^16 cm^-3, what is the hole concentration in the sample?
Correct Answer:
2.25 x 10^4 cm^-3
Question 2
Which of the following semiconductor diodes works on the principle of quantum mechanical tunneling under reverse bias conditions?
Correct Answer:
Tunnel Diode
Question 3
In a bipolar junction transistor (BJT), if the common-base current gain (alpha) is 0.98, what is the common-emitter current gain (beta)?
Correct Answer:
49
Question 4
For an n-channel enhancement-type MOSFET, the threshold voltage Vth is 1 V. If the gate-to-source voltage VGS is 3 V and the drain-to-source voltage VDS is 1.5 V, in which region of operation is the MOSFET?
Correct Answer:
Triode (Linear) region
Question 5
A High Electron Mobility Transistor (HEMT) utilizes a heterojunction to achieve high switching speeds. Which phenomenon is primarily responsible for the extremely high mobility in a HEMT?
Correct Answer:
Formation of a Two-Dimensional Electron Gas (2DEG) at the undoped heterointerface
Question 1
Exam overview

About this Exam

Prepare with the UGC NET Electronic Science Practice Questions - UGC NET Electronic Science (Paper 2) Exam practice quiz. This question bank includes 100 questions covering silicon, voltage, circuit, resistor, and ohms. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

UGC NET Electronic Science Practice Questions - UGC NET Electronic Science (Paper 2) Exam

This practice set contains 100 questions from the matching question bank and focuses on silicon, voltage, circuit, resistor, and ohms. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions

Aquatic Pest Management & Aquatic Science Practice Exam

0 min

A Level Computer Science OCR Practice Exam

0 min

Certified Electronic Reporter CER Practice Exam

0 min

AAMI Science Practice Exam

0 min

ABCTE Science Practice Exam Study Guide

0 min

Certify Teacher Science Practice Exam

0 min