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Physics Exam  >  Physics Test  >  Topic wise Tests for IIT JAM   >  Bipolar Junction Transistor NAT Level -2 - Physics MCQ

Bipolar Junction Transistor NAT Level -2 - Free MCQ Test with solutions


MCQ Practice Test & Solutions: Bipolar Junction Transistor NAT Level -2 (10 Questions)

You can prepare effectively for Physics Topic wise Tests for IIT JAM Physics with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Bipolar Junction Transistor NAT Level -2". These 10 questions have been designed by the experts with the latest curriculum of Physics 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 45 minutes
  • - Number of Questions: 10

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*Answer can only contain numeric values
Bipolar Junction Transistor NAT Level -2 - Question 1
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Calculate the voltage VC of the circuit shown in the given figure:


Detailed Solution: Question 1


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Bipolar Junction Transistor NAT Level -2 - Question 2
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Calculate the minimum value of C2 (in μF) if the amplifier operate over a frequency range of 2kHz to 10kHz?


Detailed Solution: Question 2

RE = 560Ω
XC of the bypass capacitor C2 should be

The capacitive value, at the minimum frequency of 2kHz

The correct answer is: 1.42

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Bipolar Junction Transistor NAT Level -2 - Question 3
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If the Q-point is 2 Vand 1 mA with the help of a feedback resistor RB. β = 100, then what is the value of RB in? (Take VBE = 0.7V).


Detailed Solution: Question 3



The correct answer is: 130

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Bipolar Junction Transistor NAT Level -2 - Question 4
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Calculate the value of VCE (in Volts) for the circuit shown below. (β = 100 and VBE =0.7V).


Detailed Solution: Question 4

Let us use Thevenin’s theorem


Now, applying KVL to Base circuit

= 9.45 μA
lC = 0.945mA
Now, Vcc = IcRc - VCE


The correct answer is: 6.22

*Answer can only contain numeric values
Bipolar Junction Transistor NAT Level -2 - Question 5
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A npn transistor circuit has  ∝ = 0.985. If IC = 2mA then the value of lB (in mA) is?


Detailed Solution: Question 5


= 0.03 mA
The correct answer is: 0.03

*Answer can only contain numeric values
Bipolar Junction Transistor NAT Level -2 - Question 6
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For the circuit shown below, the value of IC is: 


Detailed Solution: Question 6

Concept:
DC Analysis of BJT Amplifier
During the calculation of the DC parameter of a BJT amplifier, the capacitor is open-circuited.

*Answer can only contain numeric values
Bipolar Junction Transistor NAT Level -2 - Question 7
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In the circuit shown in figure below, minimum value of β such that transistor in saturation is


Detailed Solution: Question 7

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Bipolar Junction Transistor NAT Level -2 - Question 8
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In a certain oscillator, Av = 50. The attenuation of the feedback circuit must be?


Detailed Solution: Question 8

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Bipolar Junction Transistor NAT Level -2 - Question 9
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An amplifier of gain 1000 is made into a feedback amplifier by feeding 9.9% of its output voltage in series with the input opposing. If fl = 20Hz and fh = 200kHz for the amplifier without feedback then due to the feedback what is the new frequency (in kHz)?


Detailed Solution: Question 9


The correct answer is: 20000

*Answer can only contain numeric values
Bipolar Junction Transistor NAT Level -2 - Question 10
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VCE  approximately equals ________ when a transistor switch is in saturation.


Detailed Solution: Question 10

"Saturation" in a transistor switch circuit is achieved when the voltage across the collector/ emitter (VCE(sat)) is less than or equal to . 1 to . 3 volts - depending on the type of transistor. At that voltage point, the transistor appears to act like a simple SPST mechanical switch that has been closed (On).

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About this Physics Practice Test

This test contains 10 MCQs on Bipolar Junction Transistor NAT Level -2 with detailed solutions for each question. It is part of the Topic wise Tests for IIT JAM Physics course on EduRev, designed to align with the current Physics syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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