IIT JAM  >  Solid State Physics, Devices & Electronics  >  Bipolar Junction Transistor MCQ Level -1 Download as PDF

Bipolar Junction Transistor MCQ Level -1


Test Description

10 Questions MCQ Test Solid State Physics, Devices & Electronics | Bipolar Junction Transistor MCQ Level -1

Bipolar Junction Transistor MCQ Level -1 for IIT JAM 2022 is part of Solid State Physics, Devices & Electronics preparation. The Bipolar Junction Transistor MCQ Level -1 questions and answers have been prepared according to the IIT JAM exam syllabus.The Bipolar Junction Transistor MCQ Level -1 MCQs are made for IIT JAM 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Bipolar Junction Transistor MCQ Level -1 below.
Solutions of Bipolar Junction Transistor MCQ Level -1 questions in English are available as part of our Solid State Physics, Devices & Electronics for IIT JAM & Bipolar Junction Transistor MCQ Level -1 solutions in Hindi for Solid State Physics, Devices & Electronics course. Download more important topics, notes, lectures and mock test series for IIT JAM Exam by signing up for free. Attempt Bipolar Junction Transistor MCQ Level -1 | 10 questions in 30 minutes | Mock test for IIT JAM preparation | Free important questions MCQ to study Solid State Physics, Devices & Electronics for IIT JAM Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
Bipolar Junction Transistor MCQ Level -1 - Question 1

Which one of the following is correct for a common base configuration of a transistor? 

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 1

This transistor configuration provides a low input impedance while offering a high output impedance. Although the voltage is high, the current gain is low and the overall power gain is also low 

Bipolar Junction Transistor MCQ Level -1 - Question 2

A pnp transistor can be considered to be equivalent to two diodes as shown in figure.

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 2


The direction of current is always from p to n.
The correct answer is:

Bipolar Junction Transistor MCQ Level -1 - Question 3

A transistor is used to make a common-base amplifier. If the transistor is npn and when it is biased in the active region, choose the correct option of the following.

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 3

For an npn common base amplifier, emitter is always forward biased and collector is reverse biased.
The correct answer is: Emitter is forward biased and collector is reverse biased

Bipolar Junction Transistor MCQ Level -1 - Question 4

The frequency response curve of a RC coupled amplifier is shown in the given diagram.Based on it, what is the bandwidth?

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 4

The difference of frequencies when amplitude becomes 70% of maximum is called as bandwidth.
Hence, bandwidth = 
The correct answer is:

Bipolar Junction Transistor MCQ Level -1 - Question 5

The main function of coupling capacitor in an RC coupled common emitter amplifier is to :

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 5

The cascaded amplifier, where an RC network is used for inter stage coupling is known as RC coupled amplifier. The main function of capacitor in RC coupling in common emitter amplifier is to isolate the dc .
The correct answer is: dc isolation

Bipolar Junction Transistor MCQ Level -1 - Question 6

The equivalent electrical circuit of a vibrating crystal is as shown below.

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 6

Since C and Cm are parallel, the equivalent capacitance is given as:
Ceq=c + cm
Now,


The correct answer is: 

Bipolar Junction Transistor MCQ Level -1 - Question 7

In common emitter mode, the input characteristics of a BJT is the variation of :

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 7

In common emitter mode, lE = lB + lC
The input characteristics of the transistor represents the variation of base current lB with base emitter voltage VBE keeping VCE fixed.
The correct answer is: lB versus VBE at Constant VCE

Bipolar Junction Transistor MCQ Level -1 - Question 8

A crystal oscillator provides a very stable frequency because of.

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 8

Sharpness is the measurement of the stability. Sharpness increases means durability increases, since sharpness is directly proportional to quality factor Q. Hence, a crystal oscillator provides stable frequency because of high Q of the crystal.
The correct answer is: high Q of the crystal

Bipolar Junction Transistor MCQ Level -1 - Question 9

For a common base circuit configuration of transistor, the correct relation between emitter (lE), base (lB) and collector (lc) current is :

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 9


The correct answer is:  

Bipolar Junction Transistor MCQ Level -1 - Question 10

Which of the following is true for the active region of an NPN transistor?

Detailed Solution for Bipolar Junction Transistor MCQ Level -1 - Question 10

The base current and the collector current are directly proportional to each other and the potential difference between the collector and the base is always less than 0.4 V.

Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about Bipolar Junction Transistor MCQ Level -1 Page
In this test you can find the Exam questions for Bipolar Junction Transistor MCQ Level -1 solved & explained in the simplest way possible. Besides giving Questions and answers for Bipolar Junction Transistor MCQ Level -1, EduRev gives you an ample number of Online tests for practice