Test: Basic BJT Circuits


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20 Questions MCQ Test GATE Electrical Engineering (EE) 2023 Mock Test Series | Test: Basic BJT Circuits

Test: Basic BJT Circuits for Electronics and Communication Engineering (ECE) 2022 is part of GATE Electrical Engineering (EE) 2023 Mock Test Series preparation. The Test: Basic BJT Circuits questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Test: Basic BJT Circuits MCQs are made for Electronics and Communication Engineering (ECE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Basic BJT Circuits below.
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Test: Basic BJT Circuits - Question 1

In a Darlington pair configuration, if emitter resistance is 560Ω and input resistance is 8.75MΩ than AC current gain will be

Test: Basic BJT Circuits - Question 2

For the transistor in circuit shown in fig. β = 200. Determine the value of VC for given value of VB in question.

If VB = 1V

Detailed Solution for Test: Basic BJT Circuits - Question 2

Test: Basic BJT Circuits - Question 3

For the transistor in circuit shown in fig. β = 200. Determine the value of IE and IC for given value of VB in question.

If VB = 2V

Detailed Solution for Test: Basic BJT Circuits - Question 3



Transistor is in stauration. The saturation voltage
VCE = 0.2V

Test: Basic BJT Circuits - Question 4

The transistor in circuit shown in fig. has β = 200. Determine the value of voltage Vo for given value of VBB.

If VBB = 0

Detailed Solution for Test: Basic BJT Circuits - Question 4

VBB = 0, Transistor is in cutoff region

Test: Basic BJT Circuits - Question 5

The transistor in circuit shown in fig. has β = 200. Determine the value of voltage Vo for given value of VBB.

If VBB = 1V

Detailed Solution for Test: Basic BJT Circuits - Question 5

Test: Basic BJT Circuits - Question 6

The transistor in circuit shown in fig. has β = 200. Determine the value of voltage Vo for given value of VBB.

If VBB = 2V

Detailed Solution for Test: Basic BJT Circuits - Question 6

Test: Basic BJT Circuits - Question 7

The transistor shown in the circuit of fig. has β = 150. Determine Vo for given value of
IQ in question

If IQ = 0.1 mA

Detailed Solution for Test: Basic BJT Circuits - Question 7

 I= 0.1 mA

Test: Basic BJT Circuits - Question 8

The transistor shown in the circuit of fig. has β = 150. Determine Vo for given value of  IQ in question

If IQ = 0.5 mA

Detailed Solution for Test: Basic BJT Circuits - Question 8

IE = IQ = 0.5 mA

Test: Basic BJT Circuits - Question 9

The transistor shown in the circuit of fig. has β = 150. Determine Vo for given value of  IQ in question

If IQ = 2mA

Detailed Solution for Test: Basic BJT Circuits - Question 9

Transistor is in saturation

Test: Basic BJT Circuits - Question 10

For the circuit in fig. VB = V and  β = 50. The value of VB is

Detailed Solution for Test: Basic BJT Circuits - Question 10

Test: Basic BJT Circuits - Question 11

For the circuit shown in fig. VCB = 0.5 V and β =100. The value of IQ is

Detailed Solution for Test: Basic BJT Circuits - Question 11

 

Test: Basic BJT Circuits - Question 12

For the circuit shown in fig. the emitter voltage is VE = 2 V. The value of α is

Detailed Solution for Test: Basic BJT Circuits - Question 12

Test: Basic BJT Circuits - Question 13

For the transistor in fig. β = 50. The value of voltage VEC  is

Detailed Solution for Test: Basic BJT Circuits - Question 13

Test: Basic BJT Circuits - Question 14

The current gain of the transistor shown in the circuit of fig. is β = 125. The Q-point values (ICQ , VCEQ ) are

 

Detailed Solution for Test: Basic BJT Circuits - Question 14

Test: Basic BJT Circuits - Question 15

For the circuit shown in fig. , let β = 75. The Q-point (ICQ , VCEQ ) is

Detailed Solution for Test: Basic BJT Circuits - Question 15

Test: Basic BJT Circuits - Question 16

The current gain of the transistor shown in the circuit of fig. is β = 100. The values of Q-point (ICQ , VCEQ ) is

Detailed Solution for Test: Basic BJT Circuits - Question 16

R1 =12 Ω, R2 = 2 Ω

Test: Basic BJT Circuits - Question 17

For the circuit in fig. , let β = 60. The value of VECQ  is

Detailed Solution for Test: Basic BJT Circuits - Question 17

Test: Basic BJT Circuits - Question 18

All transistor in the N output mirror in fig. are matched with a finite gain β and early voltage VA = ∞. The expression for each load current is

Detailed Solution for Test: Basic BJT Circuits - Question 18

Test: Basic BJT Circuits - Question 19

Consider the basic three transistor current source in fig. Assume all transistor are matched with finite gain and early voltage VA  = ∞.The expression for Io is

Detailed Solution for Test: Basic BJT Circuits - Question 19

Test: Basic BJT Circuits - Question 20

Consider the wilder current source of fig. Both of transistor are identical and β>>1 and VBE1 = 0.7 V. The value of resistance R1 and RE to produce Iref  = 1 mA and Io = 12 μA is (Vt = 0.026)

Detailed Solution for Test: Basic BJT Circuits - Question 20

If β>>1 and transistor are identical

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