ELECTRONICS ENGINEERING QUESTIONS -average.docx

ELECTRONICS ENGINEERING AVERAGE QUESTION 1.

Convert (121.6875)10 to !n"r# ANS$ER%

2.

1111001.10112

&o' "n# e*ree+ o, -"+e +!,t /+t te ,ee" !r/!t (te o !n t!+ +e"t!) !ntro/e to te +!*n"3 !n orer ,or t!+ t'o4+t"*e oon4e!tter "-3!,!er !r/!t to o+!33"te

ANS$ER% .

T!+ T!+ re, re,er er+ + to te te *r"*r"-  o, *"! *"!n n or -"+ -"+e e +!, +!,t t ver+ ver+/+ /+ ,re/en# ,or " !r/!t. ANS$ER%

;.

O9E :LOT

T!+ T!+ 3"' 3"' +t" +t"te te+ + t"t t"t
5.

0 e*ree+

A>:ERE?S CIRCUITAL LA$

A +!3 +!3!o !on n -o' -o'er er tr"n tr"n+! +!+to +tor r !+ !+ o-e o-er" r"te te  '!t '!t " e" e"t t +!n +!n  (@ (@SA o o  0.5 CB$). Te tr"n+!+tor r"te "t 150 $ (25 C) "+ @DA  1.5 oCB$ "n te o/nt!n* !n+/3"t!on "+ @CS  0.6 oCB$. $"t !+ te "!/ -o'er !++!-"te !, te "!ent te-er"t/re !+ ;0 oC "n TD"  200 o ANS$ER%

61.5 $

6.

7.

A v"r"tor "+ " "!/ "-"!t"ne o, 80 - "n !+ /+e !n t/ne !r/!t '!t " 100 F& !n/tor. !n te re+on"nt ,re/en# '!t no t/n!n* vo3t"*e "--3!e. ANS$ER% 1.78 >& A--3!"t!on o, "n e3etr! ,!e3 t"t re-e3+ "Hor!t# "rr!er+ !n " vo3/e o, +e!on/tor "ter!"3. ANS$ER%

8.

T!+ o-er"t!n* 3"++ !+ " ,or o, "-3!,!er o-er"t!on /+!n* -/3+e (!*!t"3) +!*n"3+ '! "re on ,or " +ort !nterv"3 "n o,, ,or " 3on*er !nterv"3. ANS$ER%

.

7.J

$"t !+ te  3o++ 'en " V2 o, 15 V "ro++ 75 K ro-+ to  V ,or V1 "ro++ 00 K ANS$ER%

12.

15.5 V

9eter!ne te r!--3e ,"tor ,or te ,!3tere r!*e ret!,!er '!t " 3o"

ANS$ER% 11.

CLASS 9

26 / !+ o' "n# vo3t+ ANS$ER%

10.

9E:LETION

420 

9eter!ne te o/t-/t vo3t"*e ,or te re*/3"tor

ANS$ER% 1.

!n Vo

ANS$ER% 1;.

9ARLINGTON :AIR

It !+ o-o+e o, ; !t+ !n " -ro*r"!n* +#+te ANS$ER%

16.

; V

T'o !-o3"r H/nt!on tr"n+!+tor+ '!t te!r o33etor+ onnete to*eter "n te e!tter o, one onnete to te "+e o, te oter. ANS$ER%

15.

10.2 V

NILE

9eter!ne te !r/!t e3o'

ANS$ER% 17.

It !+ "r"ter!e # te on!t!on 'ere!n "n !n4-"+e -ort!on o, te o/t-/t vo3t"*e o, "n "-3!,!er !+ ,e " to te !n-/t '!t no net -"+e +!,t re+/3t!n* !n " re!n,oreent o, te o/t-/t +!*n"3. ANS$ER%

18.

STATE VARIALE ILTER

:OSITIVE EE9AC

It !+ " re3""t!on o+!33"tor 'o+e ,re/en# "n e "n*e # " v"r!"3e  ontro3 vo3t"*e. ANS$ER%

VCO OR VOLTAGE CONTROLLE9 OSCILLATOR