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GATE 2024 EE question paper PDF and answer key

The official GATE 2024 Electrical Engineering paper, organised by IISc Bengaluru: 65 questions for 100 marks in 3 hours. Download the official question paper and answer key as PDFs. Below is how the marks were split by topic, the complete official answer key and 5 questions solved step by step.

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Question paper (PDF)Official answer key (PDF)

Source: the official paper and answer key published by IISc Bengaluru for GATE 2024 (official GATE site). Spotted a mistake? Email team@lemyte.com.

General Aptitude
10 · 15 marks
Electrical Engineering
55 · 85 marks
MCQ / MSQ / NAT
35 / 7 / 23
Marks to all
Q 7, 18

Where the marks were

GATE 2024 EE topic-wise marks

Electrical Engineering questions only; General Aptitude adds 15 marks on top. The top three topics carried 32 of the 85 subject marks.

TopicQuestionsMarks
Signals and Systems711
Power Electronics711
Power Systems610
Control Systems69
Analog and Digital Electronics69
Electrical Machines58
Electric Circuits57
Calculus36
Electromagnetic Fields24
Electrical and Electronic Measurements23
Linear Algebra22
Complex Variables22
Differential Equations12
Probability and Statistics11

Free solved questions

5 solved questions from GATE 2024 EE

Question text and figures as in the official paper, the answer from the official key, and a worked solution. The other 60 solutions are in your report after you take the paper.

Q6 · General Aptitude · MCQ · 2 marks

In the given text, the blanks are numbered (i)-(iv). Select the best match for all the blanks.

Following a row (i) _____ the shopkeeper (ii) _____ the price of a frying pan, the cook stood (iii) _____ a row to withdraw cash (iv) _____ the ATM booth.

  • (A)
    (i) with (ii) over (iii) at (iv) with
  • (B)
    (i) at (ii) over (iii) over (iv) in
  • (C)
    (i) with (ii) over (iii) in (iv) at
  • (D)
    (i) over (ii) with (iii) over (iv) at

Answer (official key): C

Solution

"A row with the shopkeeper" = argument; "over the price" = dispute; "stood in a row" = queue; "at the ATM booth" = location. Therefore, the correct answer is Option C.

Q8 · General Aptitude · MCQ · 2 marks

The chart below shows the data of the number of cars bought by Millennials and Gen X people in a country from the year 2010 to 2020 as well as the yearly fuel consumption of the country (in Million liters).

Considering the data presented in the chart, which one of the following options is true?

Source figure

  • (A)
    The percentage increase in fuel consumption from 2010 to 2015 is more than the percentage increase in fuel consumption from 2015 to 2020.
  • (B)
    The increase in the number of Millennial car buyers from 2015 to 2020 is less than the decrease in the number of Gen X car buyers from 2010 to 2015.
  • (C)
    The increase in the number of Millennial car buyers from 2010 to 2015 is more than the decrease in the number of Gen X car buyers from 2010 to 2015.
  • (D)
    The decrease in the number of Gen X car buyers from 2015 to 2020 is more than the increase in the number of Millennial car buyers from 2010 to 2015.

Answer (official key): C

Solution

From the chart (buyers in thousands): Gen X 40 → 30 → 25, Millennials 20 → 45 → 60, fuel 50 → 60 → 90 million litres.

  • (A) Fuel rose 20% then 50%: false.
  • (B) Millennials +15 (2015–20) vs Gen X −10 (2010–15): false.
  • (C) Millennials +25 (2010–15) is more than the Gen X −10 decrease: true.
  • (D) Gen X fell only 5 in 2015–20: false.

Q47 · Power Systems · MSQ · 2 marks

Which of the following options is/are correct for the Automatic Generation Control (AGC) and Automatic Voltage Regulator (AVR) installed with synchronous generators?

  • (A)
    AGC response has a local effect on frequency while AVR response has a global effect on voltage.
  • (B)
    AGC response has a global effect on frequency while AVR response has a local effect on voltage.
  • (C)
    AGC regulates the field current of the synchronous generator while AVR regulates the generator's mechanical power input.
  • (D)
    AGC regulates the generator's mechanical power input while AVR regulates the field current of the synchronous generator.

Answer (official key): B, D

Solution

AGC controls system frequency (a global quantity) by adjusting the generator's mechanical power input. AVR controls terminal voltage (a local quantity) by adjusting the field current. Therefore, the correct answers are Options B and D.

Q48 · Electric Circuits · Numerical · 2 marks

Two passive two-port networks P and Q are connected as shown in the figure. The impedance matrix of network P is ZP=[406080100] ΩZ_P = \begin{bmatrix} 40 & 60 \\ 80 & 100 \end{bmatrix}\ \Omega. The admittance matrix of network Q is YQ=[5−2.5−2.51]Y_Q = \begin{bmatrix} 5 & -2.5 \\ -2.5 & 1 \end{bmatrix} S. Let the ABCD matrix of the two-port network R in the figure be [αβγδ]\begin{bmatrix} \alpha & \beta \\ \gamma & \delta \end{bmatrix}. The value of β\beta in Ω\Omega is ______ (rounded off to 2 decimal places).

Source figure

Answer (official key): -19.9 to -19.7

Solution

From ZPZ_P: A=4080=0.5A = \frac{40}{80} = 0.5 and B=ΔZz21=4000−480080=−10 ΩB = \frac{\Delta Z}{z_{21}} = \frac{4000 - 4800}{80} = -10\ \Omega (with D=1.25D = 1.25).

From YQY_Q: BQ=−1y21=0.4 ΩB_Q = -\frac{1}{y_{21}} = 0.4\ \Omega and DQ=−y11y21=2D_Q = -\frac{y_{11}}{y_{21}} = 2.

Cascading: β=APBQ+BPDQ=0.5(0.4)+(−10)(2)=−19.80 Ω\beta = A_PB_Q + B_PD_Q = 0.5(0.4) + (-10)(2) = -19.80\ \Omega.

Q49 · Electric Circuits · Numerical · 2 marks

For the circuit shown in the figure, the source frequency is 5000 rad/sec. The mutual inductance between the magnetically coupled inductors is 5 mH with their self inductances being 125 mH and 1 mH. The Thevenin's impedance, ZthZ_{th}, between the terminals P and Q in Ω\Omega is ______ (rounded off to 2 decimal places).

Source figure

Answer (official key): 5.32 to 5.34

Solution

At ω=5000\omega = 5000: XL1=625 ΩX_{L1} = 625\ \Omega, XL2=5 ΩX_{L2} = 5\ \Omega, XC=4 ΩX_C = 4\ \Omega. The reflected impedance from the secondary cancels part of the primary reactance, and the Thevenin impedance seen from P–Q works out to about 5.33 Ω5.33\ \Omega. Therefore, the answer is 5.33 (official range 5.32 to 5.34).

The other 60 questions are solved in your report when you take GATE 2024 EE as a 3-hour test.

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Official answer key

GATE 2024 EE answer key

All 65 answers from the official key. Numerical answers are ranges; “or” means the key accepts either answer.

Download the official GATE 2024 EE answer key (PDF)
QTopicTypeMarksAnswer
1Verbal AptitudeMCQ1A
2Spatial AptitudeMCQ1A
3Quantitative AptitudeMCQ1D
4Quantitative AptitudeMCQ1C
5Quantitative AptitudeMCQ1A
6Verbal AptitudeMCQ2C
7Quantitative AptitudeMCQ2Marks to all
8Analytical AptitudeMCQ2C
9Spatial AptitudeMCQ2B
10Quantitative AptitudeMCQ2A
11Linear AlgebraMCQ1C
12Electric CircuitsMCQ1A
13Electric CircuitsMCQ1A
14Electric CircuitsMCQ1A
15Signals and SystemsMCQ1A
16Signals and SystemsMCQ1A
17Electrical MachinesMCQ1C
18Electrical MachinesMCQ1Marks to all
19Power SystemsMCQ1C
20Control SystemsMCQ1D
21Control SystemsMCQ1B
22Control SystemsMCQ1B
23Electrical and Electronic MeasurementsMCQ1C
24Analog and Digital ElectronicsMCQ1A
25Analog and Digital ElectronicsMCQ1C
26Analog and Digital ElectronicsMCQ1B
27Power ElectronicsMCQ1D
28Power ElectronicsMCQ1B
29Probability and StatisticsMSQ1B, D
30Complex VariablesMSQ1D
31Complex VariablesNumerical10
32Linear AlgebraNumerical129
33Signals and SystemsNumerical10
34Power SystemsNumerical135
35Power ElectronicsNumerical150
36CalculusMCQ2C
37Signals and SystemsMCQ2B
38Signals and SystemsMCQ2D
39Signals and SystemsMCQ2C
40Electrical MachinesMCQ2A
41Power SystemsMCQ2A
42Analog and Digital ElectronicsMCQ2A
43CalculusMSQ2B
44CalculusMSQ2B
45Differential EquationsMSQ2B, D
46Power SystemsMSQ2A, D
47Power SystemsMSQ2B, D
48Electric CircuitsNumerical2-19.9 to -19.7
49Electric CircuitsNumerical25.32 to 5.34
50Electrical and Electronic MeasurementsNumerical2692 to 693
51Electromagnetic FieldsNumerical2-1.7 to -1.5
52Electromagnetic FieldsNumerical22
53Signals and SystemsNumerical22
54Electrical MachinesNumerical20.26 to 0.29
55Electrical MachinesNumerical227.19 to 27.39
56Power SystemsNumerical20.1 to 0.12
57Control SystemsNumerical24 to 8
58Control SystemsNumerical20.09 to 0.11
59Control SystemsNumerical21.11 to 1.13
60Analog and Digital ElectronicsNumerical21.64 to 1.7
61Analog and Digital ElectronicsNumerical239.5 to 41.5
62Power ElectronicsNumerical20.94 to 0.97
63Power ElectronicsNumerical250
64Power ElectronicsNumerical213
65Power ElectronicsNumerical2113 to 116

Questions about GATE 2024 EE

How many questions are in the GATE 2024 EE paper?

65 questions for 100 marks: 10 General Aptitude questions worth 15 marks and 55 Electrical Engineering questions worth 85 marks. By type, there were 35 MCQs, 7 MSQs, 23 numerical answer (NAT) questions. The paper lasted 3 hours.

Is there negative marking in GATE 2024 EE?

Yes, for MCQs only. A wrong MCQ answer costs one-third of its marks (−⅓ for a 1-mark question, −⅔ for a 2-mark question). MSQ and numerical (NAT) questions have no negative marking, and an MSQ earns marks only when every correct option is chosen.

Which topics carried the most marks in GATE 2024 EE?

Outside General Aptitude, the biggest topics were Signals and Systems (11 marks), Power Electronics (11 marks), Power Systems (10 marks). The full topic-wise split is in the table on this page.

Were any GATE 2024 EE questions awarded marks to all?

Yes. The official key awarded full marks to everyone for questions 7, 18.

Where does this GATE 2024 EE answer key come from?

From the official answer key published by IISc Bengaluru, which organised GATE 2024. Range answers for numerical questions and questions with more than one accepted answer are kept exactly as the key gives them.

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