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January 2025 term · Mathematics for Electronics I · MA1101

Maths for Electronics 1 End Term: 13 April 2025, Set QEF1 (January 2025 term)

The IIT Madras BS Mathematics for Electronics I (Maths for Electronics 1) End Term paper sat on 13 Apr 2025, in the January 2025 term, set QEF1: 18 questions for 40 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
18
Marks
40
Duration
180 min
MSQ
3
Numerical
8
MCQ
7
Take as mock testPractise with answers

Updated

Official paper: IIT M ES FOUNDATION AN EXAM QEF3 13 Apr 2025 · No negative marking.

Question 1

+2 marksOne or more correct options

Answer the given subquestions.

Select all that apply.

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answers

  • A
  • C
Question 1 on its own page

Question 2

+2 marksNumerical answer

Answer the given subquestions.

Show answer

Correct answer: 2

Question 2 on its own page

Question 3

+2 marksOne correct option

Which of the following options is (are) correct?

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer

  • D
Question 3 on its own page

Question 4

+2 marksNumerical answer
Show answer

Correct answer: 114.34 (accepted within ±1)

Question 4 on its own page

Question 5

+2 marksOne correct option
  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer

  • B
Question 5 on its own page

Question 6

+2 marksOne correct option

Which of the following options is (are) correct ?

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer

  • A
Question 6 on its own page

Question 7

+2 marksNumerical answer

Answer the given subquestions .

Show answer

Correct answer: 1

Question 7 on its own page

Question 8

+2 marksOne correct option

Answer the given subquestions .

Hint: Use partial fractions to split the integrand into two terms.

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer

  • C
Question 8 on its own page

Question 9

+2 marksOne or more correct options

Select all that apply.

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answers

  • A
  • D
Question 9 on its own page

Question 10

+2 marksNumerical answer
Show answer

Correct answer: 7

Question 10 on its own page

Question 11

+2 marksOne correct option

Use the following information to answer the given subquestions:
Consider the region

Which of the following shaded regions correctly represents D?

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer

  • A
Question 11 on its own page

Question 12

+3 marksNumerical answer

Use the following information to answer the given subquestions:
Consider the region

Show answer

Correct answer: 3

Question 12 on its own page

Question 13

+3 marksOne or more correct options

Use the following information to answer the given subquestions:

Select all that apply.

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answers

  • A
  • C
Question 13 on its own page

Question 14

+2 marksNumerical answer

Use the following information to answer the given subquestions:

What is the value of 20a ?

Show answer

Correct answer: 5

Question 14 on its own page

Question 15

+3 marksOne correct option

Use the following information to answer the given subquestions:

Which of the following options is (are) true?

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer

  • B
Question 15 on its own page

Question 16

+2 marksNumerical answer

Use the following information to answer the given subquestions:

Show answer

Correct answer: 64

Question 16 on its own page

Question 17

+3 marksOne correct option

Use the following information to answer the given subquestions:
The rate of change of temperature of a body is directly proportional to the temperature difference between the body and its surrounding medium. A body is heated to 80^(o)C and placed in the air at 20 ^(o)C. After one hour its temperature is 60 ^(o)C.

The differential equation for the Temperature T is

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer

  • C
Question 17 on its own page

Question 18

+2 marksNumerical answer

Use the following information to answer the given subquestions:
The rate of change of temperature of a body is directly proportional to the temperature difference between the body and its surrounding medium. A body is heated to 80^(o)C and placed in the air at 20 ^(o)C. After one hour its temperature is 60 ^(o)C.

Find the temperature (in ^(o)C) of the body exactly after 2 hours. Enter the answer correct to two decimal places.

Show answer

Correct answer: 46.67 (accepted within ±0.2)

Question 18 on its own page