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May 2024 term · Electronic Systems Thinking and Circuits · EE1101

ESTC End Term: 1 September 2024 (May 2024 term)

The IIT Madras BS Electronic Systems Thinking and Circuits (ESTC) End Term paper sat on 1 Sept 2024, in the May 2024 term: 30 questions for 50 marks in 180 minutes. Every question is below with its answer. Take it as a timed mock test to be marked, or read it through first.

Questions
30
Marks
50
Duration
180 min
MCQ
10
Numerical
20

Updated

Official paper: IIT M ES FOUNDATION AN EXAM QEF3 01 Sep 2024 · No negative marking.

Question 1

+1 markOne correct option
  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • A

    TRUE

Question 2

+1 markOne correct option
  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • A

    TRUE

Question 3

+1 markOne correct option

The equivalent capacitance of two capacitors in series is the sum of the individual capacitor values.

  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • B

    FALSE

Question 4

+1 markOne correct option

The number of samples obtained if an input audio signal of duration 2 s is sampled at 24 kHz is about 48000.

  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • A

    TRUE

Question 5

+1 markOne correct option
  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • B

    FALSE

Question 6

+1 markOne correct option
  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • B

    FALSE

Question 7

+1 markOne correct option

Current sources in an electric circuit can absorb or deliver power.

  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • A

    TRUE

Question 8

+1 markOne correct option

Ampere-hour is an equivalent unit of power.

  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • B

    FALSE

Question 9

+1 markOne correct option

Harmonics are integer multiples of the fundamental frequency.

  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • A

    TRUE

Question 10

+1 markOne correct option

The energy stored in a capacitor charged to 10 V is 0.01 J. The value of the capacitor is 2 μF.

  1. A

    TRUE

  2. B

    FALSE

Show answer

Correct answer

  • B

    FALSE

Question 11

+2 marksNumerical answer
Show answer

Correct answer: 1.5 (accepted within ±0.15)

Question 12

+2 marksNumerical answer
Show answer

Correct answer: 10 (accepted within ±1)

Question 13

+2 marksNumerical answer
Show answer

Correct answer: 4.825 (accepted within ±0.485)

Question 14

+1 markNumerical answer

Based on the above data, answer the given subquestions.

Show answer

Correct answer: 5 (accepted within ±0.5)

Question 15

+1 markNumerical answer

Based on the above data, answer the given subquestions.

Show answer

Correct answer: 2.5 (accepted within ±0.25)

Question 16

+1 markNumerical answer

Based on the above data, answer the given subquestions.

The frequency of a message signal f1 is ________ kHz

Show answer

Correct answer: 10 (accepted within ±0.01)

Question 17

+1 markNumerical answer

Based on the above data, answer the given subquestions.

The frequency of a message signal f2 is ________ kHz

Show answer

Correct answer: 100 (accepted within ±0.1)

Question 18

+2 marksNumerical answer

For the circuit shown below, Answer the given subquestions.

The current I (in A) in the direction shown through the 1Ω resistance when only the 1 A current source is being energized is ______.

Show answer

Correct answer: 0.67 (accepted within ±0.07)

Question 19

+2 marksNumerical answer

For the circuit shown below, Answer the given subquestions.

The current I (in A) in the direction shown through the 1Ω resistance when only the 3 A current source is being energized is ______.

Show answer

Correct answer: 2 (accepted within ±0.2)

Question 20

+2 marksNumerical answer

For the circuit shown below, Answer the given subquestions.

The current I (in A) in the direction shown through the 1Ω resistance when only the 4 V voltage source is being energized is ______.

Show answer

Correct answer: 1.33 (accepted within ±0.13)

Question 21

+2 marksNumerical answer

For the circuit shown below, Answer the given subquestions.

The power (in W) delivered by the 4 V voltage source is ______.

Show answer

Correct answer: 4 (accepted within ±0.4)

Question 22

+2 marksNumerical answer

For the circuit shown below, Answer the given subquestions.

The total power (in W) dissipated by all the passive components is ______

Show answer

Correct answer: 64 (accepted within ±6.4)

Question 23

+3 marksNumerical answer

Compute the values of the instantaneous voltage (in V) across the capacitor at various time instant as given in the subquestions

v(t = 5 ms)

Show answer

Correct answer: 1.255 (accepted within ±0.125)

Question 24

+3 marksNumerical answer

Compute the values of the instantaneous voltage (in V) across the capacitor at various time instant as given in the subquestions

v(t = 10 ms)

Show answer

Correct answer: 1.255 (accepted within ±0.125)

Question 25

+4 marksNumerical answer

Compute the values of the instantaneous voltage (in V) across the capacitor at various time instant as given in the subquestions

v(t = 20 ms)

Show answer

Correct answer: 0

Question 26

+2 marksNumerical answer

Based on the above data, answer the given subquestions.

The initial voltage across capacitors 2 mF and 4 mF are 0 V

Show answer

Correct answer: 24 (accepted within ±2.4)

Question 27

+2 marksNumerical answer

Based on the above data, answer the given subquestions.

The initial voltage across capacitors 2 mF and 4 mF are 0 V

Show answer

Correct answer: 4 (accepted within ±0.4)

Question 28

+2 marksNumerical answer

Based on the above data, answer the given subquestions.

The initial voltage across capacitors 2 mF and 4 mF are 0 V

Show answer

Correct answer: 3 (accepted within ±0.3)

Question 29

+2 marksNumerical answer

Based on the above data, answer the given subquestions.

If the initial voltage across the 4 mF capacitor is 4 V .

Show answer

Correct answer: 6.67 (accepted within ±0.67)

Question 30

+2 marksNumerical answer

Based on the above data, answer the given subquestions.

If the initial voltage across the 4 mF capacitor is 4 V .

Show answer

Correct answer: 1.32 (accepted within ±0.13)