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OP AMP MSQ - Physics MCQ


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10 Questions MCQ Test - OP AMP MSQ

OP AMP MSQ for Physics 2024 is part of Physics preparation. The OP AMP MSQ questions and answers have been prepared according to the Physics exam syllabus.The OP AMP MSQ MCQs are made for Physics 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for OP AMP MSQ below.
Solutions of OP AMP MSQ questions in English are available as part of our course for Physics & OP AMP MSQ solutions in Hindi for Physics course. Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free. Attempt OP AMP MSQ | 10 questions in 45 minutes | Mock test for Physics preparation | Free important questions MCQ to study for Physics Exam | Download free PDF with solutions
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OP AMP MSQ - Question 1
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Common-mode rejection ratio is given by

Detailed Solution for OP AMP MSQ - Question 1


The correct answers are:

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OP AMP MSQ - Question 2
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If Av(d) = 3500 and ACM = 0.35, then CMRR is :

Detailed Solution for OP AMP MSQ - Question 2


Expressed in dB

= 80 dB
The correct answers are: 10000, 80 dB

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OP AMP MSQ - Question 3
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If a certain Op-Amp has a closed loop gain of 20 and an upper critical frequency of 10 MHz, the gain bandwidth product is :

Detailed Solution for OP AMP MSQ - Question 3

GBW= 20 x 10 = 200MHz and gain bandwidth product is also defined as the frequency with unity gain.
The correct answers are: 20 MHz, unity gain frequency

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OP AMP MSQ - Question 4
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The Op-Amp has the following parameters; Aol = 50000; Zin = 4MΩ and Zout = 50Ω. The values of input impedance, output impedance and close loop voltage gains are :
Detailed Solution for OP AMP MSQ - Question 4


The feedback attenuation B is



zero for all practical purposes. The closed loop voltage gain is.

The correct answers are: Zout = 980mΩ, Acl(t) = -100

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OP AMP MSQ - Question 5
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The circuit shown in the figure can be used as a
Detailed Solution for OP AMP MSQ - Question 5

The given circuit is


It is an integrator and low-pass filter.
The correct answers are: low pass filter, Integrator

OP AMP MSQ - Question 6
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The inverting input terminal of an operational amplifier (Op-Amp) is shorted with output terminal apart from being grounded. A voltage signal V1 is applied to the noninverting input terminal of the Op-Amp. Under this configuration the Op-Amp function is as :
Detailed Solution for OP AMP MSQ - Question 6

Correct Answer :- d

Explanation :

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OP AMP MSQ - Question 7
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A differential amplifier.
Detailed Solution for OP AMP MSQ - Question 7

Any differential amplifier has two inputs and two outputs (one is Vout and other is ground potential) The correct answers are: is a part of an Op-Amp, has two output

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OP AMP MSQ - Question 8
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The data of Op-Amp shown in figure is.

Zin = 2MΩ, ZOut = 75Ω and AoI = 200000, then the correct matching pairs is.
Detailed Solution for OP AMP MSQ - Question 8

The attenuation, B, of the feedback circuit is


= [1 + (200000)(0.0435)](2MΩ)
= 17.4 GΩ

= 8.6mΩ

The correct answers are: Attenuation of the feedback = +0.0435, Input impedance = +17.4 GΩ

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OP AMP MSQ - Question 9
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In order to obtain a solution of the differential equation
involving voltage V(t) and V1 an Op-Amp circuit would require at least.
Detailed Solution for OP AMP MSQ - Question 9

Since, it is a two degree linear differential equation, hence, two integrators are required, also one adder to calculate the sum of outputs.
The correct answers are: two Op-Amp integrator , one Op-Amp adder

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OP AMP MSQ - Question 10
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A certain Op-Amp has an open loop voltage gain of 1,00,000 and a common mode gain of 0.2. The CMRR is :
Detailed Solution for OP AMP MSQ - Question 10

Aol = 100000 
Acm = 0.2

Expressed in decibels
CMRR = 
= 114dB
The correct answers are: 500000, 114 dB

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