Electronic Devices and Circuits MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Electronic Devices and Circuits, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Electronic Devices and Circuits MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Electronic Devices and Circuits mcq questions that explore various aspects of Electronic Devices and Circuits problems. Each MCQ is crafted to challenge your understanding of Electronic Devices and Circuits principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Electronic Devices and Circuits MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Electronic Devices and Circuits. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Electronic Devices and Circuits knowledge to the test? Let's get started with our carefully curated MCQs!

Electronic Devices and Circuits MCQs | Page 7 of 82

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Q61.
Secondary emission is always decremental.
Discuss
Answer: (b).False
Discuss
Answer: (b).is in conduction band
Q63.
The types of carriers in a semiconductor are

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (b).2
Q64.
A potential of 7 V is applied to a silicon diode. A resistance of 1 K ohm is also in series with the diode. The current is
Discuss
Answer: (b).6.3 mA
Q65.
Assertion (A): The reverse saturation current in a semiconductor diode is 4nA at 20°C and 32 nA at 50°C.
Reason (R): The reverse saturation current in a semiconductor diode doubles for every 10°C rise in temperature.
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Q66.
Recombination produces new electron-hole pairs
Discuss
Answer: (b).False
Q67.
An amplifier without feedback has a voltage gain of 50, input resistance of 1 kฮฉ and output resistance of 2.5 kฮฉ. The input resistance of the current shunt -ve feedback amplifier using the above amplifier with a feedback factor of 0.2 is
Discuss
Answer: (a).1/11 kฮฉ
Q68.
As compared to an ordinary semiconductor diode, a Schottky diode
Discuss
Answer: (a).has lower cut in voltage
Q69.
Assertion (A): When a high reverse voltage is applied to a p-n junction the diode breaks down.
Reason (R): High reverse voltage causes Avalanche effect.
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Discuss
Answer: (c).has higher reverse saturation current and lower cut in voltage