Karnataka SSLC Question Paper 2026 Elements of Electrical Engineering IV

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Total No. of Questions : 17 ]

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Subject : ELEMENTS OF ELECTRICAL ENGINEERING-IV

¶´¤MO⁄ : 01. 04. 2026 ] [ Date : 01. 04. 2026
ÓÜÊÜá¿á : ¸æÙÜWæY 10-00 Äí¨Ü ÊÜá«ÝÂÖÜ° 1-15 ÃÜÊÜÃæWæ ] [ Time : 10-00 A.M. to 1-15 P.M.
V⁄¬Œ⁄r @MO⁄V⁄◊⁄fl : 80 ] [ Max. Marks : 80
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General Instructions to the Candidate :
1. This question paper consists of 17 questions.
2. This question paper has been sealed by reverse jacket. You have to cut
on the right side to open the paper at the time of commencement of
the examination ( Follow the arrow mark ). Do not cut the left side to
open the paper. Check whether all the pages of the question paper are
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3. Follow the instructions given against the questions.
4. Figures in the right hand margin indicate maximum marks for the
questions.
5. The maximum time to answer the paper is given at the top of the
question paper. It includes 15 minutes for reading the question paper.

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Note : Answer all the questions.

I. Four alternatives are given for each of the following

questions / incomplete statements. Select the most

appropriate alternative and write it in the answer book along

with its alphabet : 10 × 1 = 10

1. The S.I. unit of electrical energy is

(A) kilo-watthour (B) second

(C) watt (D) volt

2. The value of peak factor for a sine wave is

(A) 1·414 (B) 0·707

(C) 0·637 (D) 1·11

3. The phenomenon of electromagnetic induction is found by

(A) Marconi (B) Faraday

(C) Fleming (D) Graham Bell

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4. Example for self-induced emf is

(A) Transformer

(B) D. C. generator

(C) A. C. generator

(D) Auto transformer

5. The core of the transformer is made up of

(A) Silicon steel (B) Aluminium

(C) Copper (D) Brass

6. In step-down transformer

(A) N1 < N 2 (B) N1 = N 2

(C) N1 > N 2 (D) I1 = I 2

7. Which of the following is a renewable source of energy ?

(A) Solar energy (B) Thermal energy

(C) Diesel energy (D) Nuclear energy

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8. Which of the following power plants uses wind ?

(A) Diesel power plant

(B) Hydro-power plant

(C) Wind power plant

(D) Tidal power plant

9. An example for semiconductor is

(A) Copper

(B) Silicon

(C) Iron

(D) Silver

10. An impurity which accepts the electron is called

(A) Acceptor impurity

(B) Donor impurity

(C) Pentavalent impurity

(D) Trivalent impurity

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II. Answer the following :

11. a) Define A.C. 2

b) Explain the following terms : 3

i) Form factor

ii) Average value

c) Draw a neat diagram of sine wave and mark the following :

5

i) Cycle

ii) Maximum value

12. a) Define Alternator. 2

b) Draw a neat diagram of star and delta connection and label

the terminals. 3

c) Explain with a neat sketch, electromagnetic induction. 5

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13. a) List the applications of IC. 2

b) Explain Faraday’s laws of Electromagnetic Induction. 3

c) Draw a neat diagram of Squirrel Cage Induction Motor and

label the parts. 5

14. a) Define Diode. 2

b) List the types of Induced EMF. 3

c) Draw a neat diagram of constructional details of transformer

and label the parts. 5

15. a) Define Extrinsic Semiconductor. 2

b) Write a short note on Auto Transformer. 3

c) Draw the neat diagram of Electric Bell and label the parts.
5

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16. a) List any four non-renewable sources of energy . 2

b) Compare Renewable and Non-Renewable energy sources.

Give examples. 3

c) Draw a neat sketch of Hydro-electric power plant and label

the parts. 5

17. a) Mention any four applications of Transistor. 2

b) Write a short note on wind power plant. 3

c) Draw a neat sketch of diode, N-P-N and P-N-P transistor and

mark the terminals. 5

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