Test: Frequency Response

# Test: Frequency Response

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## 20 Questions MCQ Test Analog Electronics | Test: Frequency Response

Test: Frequency Response for Electronics and Communication Engineering (ECE) 2023 is part of Analog Electronics preparation. The Test: Frequency Response questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Test: Frequency Response MCQs are made for Electronics and Communication Engineering (ECE) 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Frequency Response below.
Solutions of Test: Frequency Response questions in English are available as part of our Analog Electronics for Electronics and Communication Engineering (ECE) & Test: Frequency Response solutions in Hindi for Analog Electronics course. Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free. Attempt Test: Frequency Response | 20 questions in 20 minutes | Mock test for Electronics and Communication Engineering (ECE) preparation | Free important questions MCQ to study Analog Electronics for Electronics and Communication Engineering (ECE) Exam | Download free PDF with solutions
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Test: Frequency Response - Question 1

### (Q.1-Q.3) A parallel resonant circuit has a resistance of 2k ohm and half power frequencies of 86 kHz and 90 kHz. Q. The value of capacitor is

Detailed Solution for Test: Frequency Response - Question 1

BW = 2p(90-86)k = 1/RC or C = 19.89 nF.

Test: Frequency Response - Question 2

### The value of inductor is

Detailed Solution for Test: Frequency Response - Question 2

w = (86 + 90)k/2 = 88 = (1/LC)(0.5) or L = 0.16 mH.

Test: Frequency Response - Question 3

### The quality factor is

Detailed Solution for Test: Frequency Response - Question 3

Q = w/BW = 176pK/8pk = 22.

Test: Frequency Response - Question 4

(Q.4-Q.5) A parallel resonant circuit has a midband admittance of 25 X 10(-3) S, quality factor of 80 and a resonant frequency of 200 krad s.4. The value of R (in ohm) is

Detailed Solution for Test: Frequency Response - Question 4

At mid-band frequency Y = 1/R or R = 1000/25 or 40 ohm.

Test: Frequency Response - Question 5

The value of C is

Detailed Solution for Test: Frequency Response - Question 5

Q = wRC or C = 80/(200 x 1000 x 40) or 10 µF.

Test: Frequency Response - Question 6

A parallel RLC circuit has R 1 k and C 1 F. The quality factor at resonance is 200. The value of inductor is

Detailed Solution for Test: Frequency Response - Question 6

Use Q = R (L/C)0.5.

Test: Frequency Response - Question 7

A parallel circuit has R = 1k ohm , C = 50 µF and L = 10mH. The quality factor at resonance is

Detailed Solution for Test: Frequency Response - Question 7

Use Q = R (L/C)0.5.

Test: Frequency Response - Question 8

A series resonant circuit has L = 1 mH and C = 10 F. The required R (in ohm) for the BW = 15 9 . Hz is

Detailed Solution for Test: Frequency Response - Question 8

Use BW = R/L.

Test: Frequency Response - Question 9

For the RLC parallel resonant circuit when R = 8k, L = 40 mH and C = 0.25 F, the quality factorQ is

Detailed Solution for Test: Frequency Response - Question 9

use Q = R (C/L)0.5.

Test: Frequency Response - Question 10

A series resonant circuit has an inductor L = 10 mH. The resonant frequency w = 10^6 rad/s and bandwidth is BW = 103 rad/s. The value of R and C will be

Detailed Solution for Test: Frequency Response - Question 10

Use wxw = 1/LC and BW = R/L.

Test: Frequency Response - Question 11

The maximum voltage across capacitor would be

Detailed Solution for Test: Frequency Response - Question 11

Correct Answer :- a

Explanation : LC combination

3 = v1 + 10(v1 - 0.105v1)/125

= v1 = 100

Isc = 1100/125

= 0.8V

RTH = 3/0.8

= 3.75 ohm

Wo = 1/(LC)1/2

= 1000

Q = w0L/RTH

= (1000*4)/3.75

= 1066.67

|vc|max = Q*vTH

= 1066.67*3

= 3200V

Test: Frequency Response - Question 12

Find the resonnant frequency for the circuit.​

Detailed Solution for Test: Frequency Response - Question 12

Test: Frequency Response - Question 13

Determine the resonant frequency of the circuit.

Detailed Solution for Test: Frequency Response - Question 13

Test: Frequency Response - Question 14

The value of C and A for the given network function is​

Detailed Solution for Test: Frequency Response - Question 14

Test: Frequency Response - Question 15

H(w) = Vo/Vi = ?​

Detailed Solution for Test: Frequency Response - Question 15

Test: Frequency Response - Question 16

H(w) = Vo/Vi = ?​

Detailed Solution for Test: Frequency Response - Question 16

Test: Frequency Response - Question 17

The value of input frequency is required to cause a gain equal to 1.5. The value is

Detailed Solution for Test: Frequency Response - Question 17

Test: Frequency Response - Question 18

In the circuit shown phase shift equal to 45 degrees and is required at frequency w = 20 rad/s. The value of R (in kilo-ohm) is

Detailed Solution for Test: Frequency Response - Question 18

Test: Frequency Response - Question 19

For the circuit shown the input frequency is adjusted until the gain is equal to 0.6. The value of the frequency is​

Detailed Solution for Test: Frequency Response - Question 19

Test: Frequency Response - Question 20

For a stable closed loop system, the gain at phase crossover frequency should always be:

Detailed Solution for Test: Frequency Response - Question 20

Phase crossover frequency is the frequency at which the gain of the system must be 1 and for a stable system the gain is decibels must be 0 db.

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## Analog Electronics

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