Karnataka SSLC Model Question Paper 2027 for Elements Of Electrical Engineering IV (Paper 1)

FOR KARNATAKA CLASS 10 PREPARATION

Karnataka SSLC Model
Question Paper 2027 for
Elements Of Electrical
Engineering IV (Paper 1)
EXAM YEAR TYPE
Karnataka Class 10 2027 Sample Paper

Notes · Sample Papers · Previous Year Papers · Mock Tests

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Subject: ELEMENTS OF ELECTRICAL ENGINEERING –IV

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General instruction to the candidate:

1. This question paper consists of 17 questions.

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4. 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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Page 1 of 4

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. 10X1=10

1. The S I unit of time period is

(A) Hertz (B) Seconds
(C) Volt (D) Watt

2. For a sine wave Average value is
(A) 0.637 (B) 1.11
(C) 0.707 (D) 1.41
3. The core of the alternator is made of
(A) Brass (B) Silicon steel
(C )Aluminium (D) Copper

4. An A C Motor converts

(A) Mechanical energy in to DC electrical energy

(B) Mechanical energy in to chemical energy

(C) AC electrical energy into mechanical energy

(D) Mechanical energy in AC electrical energy

5. In step up transformer
(A) N1> N2 (B) I1 = I2
(C ) N1 < N2 (D) N1 = N2

6. Electrical heater is an example for

(A) Magnetic effect (B) Heating effect

(C) Lighting effect (D) Chemical effect

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7. Which among the following is a renewable sources of energy

(A) Diesel energy (B) Solar energy

(C) Nuclear energy (D) Tidal energy

8. Which of the power plant uses water?
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(A) Hydroelectric
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(C) (D) Diesel power plant
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9. agimpurity that donates electron is called
An
(A) Acceptor impurity (B) Pentavalent impurity
(C) Trivalent impurity (D) Donar impurity

10. A pure semiconductor is called
(A) Extrinsic semiconductor
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(B) P-type semiconductor
(C) Intrinsic semiconductor c.(D)o N-type semiconductor
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II. Answer all the questions
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11. a) Define A.C ag ----2

b) Explain the following terms. ----3

i) Average value

ii) Amplitude
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a ii) Frequency

12. a) Define A C Motor. ----2
b) List any six parts of A C generator. ----3
c) Explain the phenomenon of electromagnetic induction. ----5

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13 .a) List the applications of transistor. ----2
b) Explain with neat diagram mutually induced emf. ----3
c) Draw the neat diagram of wound rotor induction motor and
Label the parts. ----5

14. a) Define semiconductor. ----2
b) Write any three applications of transformer. ----3
c) Draw the neat diagram of transformer and label the parts. ----5

15. a) What are the sources of energy. ----2
b) Write short notes on thermal power plant. ----3
c) Draw the neat diagram of wind power plant and label the parts. ----5
16. a) Draw the symbolic representation of PNP-transistor. ----2
b) Write the comparison between renewable and
Non- renewable sources of energy. ----3
c) Draw the neat diagram of fluorescent lamp and label the parts. ----5

17. a) Define doping. ----2
b) Explain the following terms. ----3
i) Time period
ii) Power factor
c) Explain with neat diagram forward biasing of diode. ----5

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