TN 11th Question Paper 2023 Basic Electronics Engineering

Tamil Nadu
State Board

2023
QUESTION
PAPER

No. of Printed Pages : 7
6783
!6783IstYearBasicElectronicsEngineering! £vÄ Gs
Register Number

Part III — Vocational Subjects

Ai¨£øh ªßÚq ö£õÔ°¯À
BASIC ELECTRONICS ENGINEERING
( uªÌ ©ØÖ® B[Q» ÁÈ / Tamil & English Version )

Põ» AÍÄ : 3.00 ©o ÷|µ® ] [ ö©õzu ©v¨ö£sPÒ : 90
Time Allowed : 3.00 Hours ] [ Maximum Marks : 90

AÔÄøµPÒ : (1) AøÚzx ÂÚõUPЮ \›¯õP £vÁõQ EÒÍuõ GߣuøÚ \›£õºzxU
öPõÒÍÄ®. Aa_¨£v¨¤À SøÓ°¸¨¤ß AøÓU PsPõo¨£õÍ›h®
EhÚi¯õPz öu›ÂUPÄ®.
(2) }»® AÀ»x P¸¨¦ ø©°øÚ ©mk÷© GÊxÁuØS®
AiU÷PõikÁuØS® £¯ß£kzu ÷Ásk®. £h[PÒ ÁøµÁuØS
ö£ß]À £¯ß£kzuÄ®.
Instructions : (1) Check the question paper for fairness of printing. If there is any lack of
fairness, inform the Hall Supervisor immediately.
(2) Use Blue or Black ink to write and underline and pencil to draw
diagrams.

£Sv & I / PART - I
SÔ¨¦ : (i) AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 15x1=15

(ii) öPõkUP¨£mkÒÍ ©õØÖ ÂøhPÎÀ ªPÄ® Hئøh¯ Âøhø¯z
÷uº¢öukzxU SÔ±mkhß Âøh°øÚ²® ÷\ºzx GÊuÄ®.
Note : (i) Answer all the questions.

(ii) Choose the most appropriate answer from the given four alternatives
and write the option code and the corresponding answer.

6783 2

1. vÓß PnUQh¨£k® `zvµ® :
(A) P = V/I (B) P = IR (C) P = V/R (D) P = VI
The power can be calculated by :
(a) P = V/I (b) P = IR (c) P = V/R (d) P = VI

2. ¤ßÁ¸ÁÚÁØÖÒ Gx BØÓÀ ©õØÔ ?
(A) ªß©õØÔ (B) ªßuøh (C) J¼Áõ[Q (D) ªß÷uUQ
Which of the following is a transducer ?
(a) Transformer (b) Resistor (c) Microphone (d) Condenser

3. ]¼UPõÛß Aq Gs :
(A) 29 (B) 6 (C) 32 (D) 14
The atomic number of Silicon is __________.
(a) 29 (b) 6 (c) 32 (d) 14

4. RÌPshøÁPÎÀ G¢uz uÛ©® ‰ßÖ CønvÓß G»UmµõßPøͨ ö£Óõux ?
(A) öẩõÛ¯® (B) ÷£õµõß (C) ÷P¼¯® (D) Csi¯®
Which of the following element does not have three valence electrons ?
(a) Germanium (b) Boron (c) Gallium (d) Indium

5. ªßÚÊzu ö£¸UQ°ß £Ð ªßuøh __________ BS®.
(A) 3 kΩ •uÀ 15 kΩ (B) 5 kΩ •uÀ 20 kΩ
(C) 4 kΩ •uÀ 8 kΩ (D) 4 kΩ •uÀ 10 kΩ
Load Impedance of Voltage Amplifier is __________.
(a) 3 kΩ to 15 kΩ (b) 5 kΩ to 20 kΩ
(c) 4 kΩ to 8 kΩ (d) 4 kΩ to 10 kΩ

6. J¸ SCR &°ß Pmk¨£õmk •øÚ :
(A) B÷Úõk ªßÁÇ[Q (B) ÷Pz÷uõk
(C) ÷Pm (D) B÷Úõk
The control terminal of an SCR is __________.
(a) Anode supply (b) Cathode

(c) Gate (d) Anode

3 6783

7. J¸ Aøµ¯ÍÁõÚ (Quasi) ©õÓõu {ø»¨ ö£ØÖÒÍ ªß_ØÖ __________ GÚ
AøÇUP¨£kQÓx.
(A) ‰ßÖ ©õÓõu {ø»a _ØÖ
(B) C¸{ø» £ßø© AvºÄ _ØÖ
(C) ‰ßÖ {ø»a _ØÖ
(D) J¸{ø» £ßø© AvºÄ _ØÖ
Circuit which consists of a quasi-stable state is called __________.
(a) Tristable circuit
(b) Bi-stable multivibrator circuit
(c) Tristate circuit
(d) Monostable multivibrator circuit

8. J¸ ø\ß Aø» Gߣx :
(A) C»UP ÁøP Aø» ©ØÖ® J¨¦ø© Aø» ÁøP
(B) J¨¦ø© Aø»
(C) C»UP ÁøP Aø» AÀ»x J¨¦ø© Aø» ÁøP
(D) C»UP ÁøP Aø»
A sine wave is a :
(a) Both digital and analog signal
(b) Analog signal
(c) Either digital or analog
(d) Digital signal

9. £S•øÓ £S¨£õøÚ E¸ÁõUQ¯Áº ¯õº ?
(A) }À ÷£õº (B) ¤øÍì £õìPÀ
(C) \õº»ì £õ÷£ä (D) {³mhß
Who developed Analytical Engine ?
(a) Neil Bohr (b) Blaise Pascal

(c) Charles Babbage (d) Newton

6783 4

10. ö£õ¸¢uõuøuz ÷uº¢öukUPÄ®.
(A) Kilowatt (B) Bit (C) Megabyte (D) Byte
Choose the odd one :
(a) Kilowatt (b) Bit (c) Megabyte (d) Byte

11. ¤ßÁ¸ÁÚÁØÖÒ Gx C¯US •øÓø© CÀ»õux ?
(A) Unix (B) Linux (C) Oracle (D) Windows
Which of the following is not an operating system ?
(a) Unix (b) Linux (c) Oracle (d) Windows

12. PoÛ°À £¯ß£kzu¨£k® ªßP»z öuõS¨¦ Gx ?
(A) BÀP¼ß (B) {UPÀ&÷Pmª¯®
(C) ¼zv¯® (D) CMOS
Which battery is used in the computer ?
(a) Alkaline (b) Nickel - Cadmium
(c) Lithium (d) CMOS

13. ÷Pm •øÚ CÀ»õu \õuÚ® :
(A) SCR (B) iøµ¯õU (C) øh¯õU (D) FET
The device that does not have gate terminal is __________.
(a) SCR (b) TRIAC (c) DIAC (d) FET

14. J¸ uÛ AkUS ªß©õØÔ°ß _ØÖUPÎß ÂQu® :
(A) 2 : 1 (B) 1 : 2 (C) 2 : 2 (D) 1 : 1
The ratio of winding in isolating transformer is :
(a) 2:1 (b) 1:2 (c) 2:2 (d) 1:1

15. 0010 &Âß 1 &ß {µ¨¦ Gs :
(A) 0100 (B) 0010 (C) 1111 (D) 1101
Write the 1’s complementary of 0010 :

(a) 0100 (b) 0010 (c) 1111 (d) 1101

5 6783

£Sv & II / PART - II
SÔ¨¦ : GøÁ÷¯Ý® £zx ÂÚõUPÐUS ©mk® Âøh¯ÎUPÄ®. AÁØÔÀ ÂÚõ
Gs 28 &US Pmhõ¯©õP Âøh¯ÎzuÀ ÷Ásk®. 10x3=30
Note : Answer any 10 questions briefly. Question No. 28 is compulsory.

16. ªßuøh GßÓõÀ GßÚ ?
What is meant by a resistor ?

17. ªßysi°ß "uSv Gs' GßÓõÀ GßÚ ?
What is ‘Q factor’ of Inductor ?

18. BØÓÀ £møh GßÓõÀ GßÚ ?
What is meant by Energy band ?

19. v¸zu® – Áøµ¯ÖUPÄ®.
Define : Rectifier.

20. HÊ xsk LED •øÓ°À Gs 3 GÆÁõÖ Põs¤UP¨£k® GߣøuU TÖP.
How will you display number 3 in seven segment display ?

21. AÊzu ªß ÂøÍÄ GßÓõÀ GßÚ ?
What is meant by Piezo electric effect ?

22. Gsoø» GsPÒ (Octal Number) GßÓõÀ GßÚ ?
What is meant by Octal Number System ?

23. PoÛ°ß uø»•øÓ ö£¯ºPøÍ GÊxP.
Write down the names of the generation of computer.

24. JØøÓ £¯Úº C¯UP •øÓø©ø¯¨ £ØÔ _¸UP©õP TÓÄ®.
Write about single user operating system.

25. Áøµ¯Ö : ø©U÷µõ\õL¨m Âs÷hõì.
Define : Microsoft Windows.

6783 6

26. öPõÒÍÍÂß Ai¨£øh°À PoÛ Áø»¯ø©¨¤ß ÁøPPøÍ GÊxP.
Write the types of computer networks based on their size.

27. Cøn¯zvß |ßø©PÒ ¯õøÁ ?
What are the advantages of Internet ?

28. ªßÛ¯À EÖ¨¦ \õuÚ[PÎß ö£¯ºPøÍ GÊxP.
Write the names of Electrical Devices.

£Sv & III / PART - III
SÔ¨¦ : GøÁ÷¯Ý® I¢x ÂÚõUPÐUS ©mk® Âøh¯ÎUPÄ®. ÂÚõ Gs
35 &US Pmhõ¯©õP Âøh¯ÎzuÀ ÷Ásk®. ÷uøÁ¯õÚ Ch[PÎÀ £h®
Áøµ¯Ä®. 5x5=25

Note : Answer any five questions. Q. No. 35 is compulsory. Draw diagrams wherever
necessary.

29. Põº£ß ªßuøhPÒ £ØÔ £hzxhß ÂÍUSP.
Draw and explain about “Carbon Resistor”.

30. iµõß]ìh›ß £¯ß£õkPøÍ GÊxP.
Write the applications of transistors.

31. Aøµ Aø»zv¸zvø¯ ªß_ØÖhß ÂÍUSP.
Explain Half-wave Rectifier with circuit diagram.

32. LED ©ØÖ® LCD & J¨¤kP.
Compare LED and LCD.

33. Aø»¯õUQ°À EÒÍ •UQ¯ £SvPøÍ £hzxhß ÂÍUSP.
Draw and explain the essential parts of the Oscillator.

34. £›©õØÖ Pmk¨£õmk ö|Ô•øÓPÎß (TCP) |ßø©PÒ ¯õøÁ ?
What are the advantages of TCP (Transmission Control Protocol) ?

35. PoÛ°ß ALU £ØÔ ÂÁ›UPÄ®.
Explain ALU in computer.

7 6783

£Sv & IV / PART - IV
SÔ¨¦ : AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. ÷uøÁ¯õÚ Ch[PÎÀ £h®
Áøµ¯Ä®. 2x10=20

Note : Answer all the questions. Draw diagrams wherever necessary.

36. (A) SCR ö\¯À£k® Âuzøua \õº¦ (biasing) Áøµ£hzxhß ÂÁ›UPÄ®.
AÀ»x
(B) Gs •øÓPÒ (Number System) £ØÔ ÂÁ›UPÄ®.
(a) Write in detail the working of SCR with biasing diagram.
OR
(b) Explain in detail about the number system.

37. (A) H÷uÝ® Cµsk uÛÁøP SøÓPhzv \õuÚ[Pøͨ £ØÔ ÂÁ›UPÄ®.
AÀ»x
(B) Po¨ö£õÔ°ß uõ´£»øP°ß TÖPÒ ©ØÖ® AÁØÔß ö\¯À£õkPøÍ
ÂÁ›UPÄ®.
(a) Explain any two special semiconductor devices.
OR
(b) Explain in detail about the components and functions of the Mother Board in
a computer.

-oOo-