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Basic Electronics
Lesson 1: INTRODUCTION
Prepared by Engr. Myrna Anot-Cabrera
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Great People who Contributedin the Development o
Electronics!"A#E$ -. Wrote about theattraction of straw and dust tofossilied tree sa! called a"ber# a"ber is the $ree% word for
electron&'() -*)+,C
C"A%#E$ C&'#&MB-. Discoered
the force between electricallchar$ed ob/ects. The unit of electricchar$e is coulo"b.
1+0'-12'
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3istor of 4lectronics
A##E$A(D%& )!A 5 Discoeredthat electricit is !roduced whentwo di6erent "etals are in contactwith "oistened cloth. The 7olt is the
unit of !otential di6erence1+)*-1(+
"A($ &E%$!ED - Deter"ined that"a$netic 8eld is !resent when
current 9ows in a wire.Oersted is one unit of "a$netis".
1+++ -1*1
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3istor of 4lectronics
A(D%E* AMPE%E - Discoeredthe correct theor ofelectro"a$netic force.
;
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3istor of 4lectronics
.. !"&MP$&( 5 Discoered the
electron. The stud of the 9ow ofelectrons and its uses is calledelectronics.
3e won the nobel !rie for 2'
1*' -1>)2
GE&%GE &"M 5 Deter"ined therelationshi! between current andolta$e in an electric circuit .
O3; is the unit of resistance.1+>-1*)
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3istor of 4lectronics
!"&MA$ A#)A ED+$&( 5 Inentedthe incandescent la"! ?!hono$ra!h and earl 8l" !ro/ector
0 inentions.1)+ -1>01
$AM'E# M&%$E / Inented thetele$ra!h and the code that bearshis na"e.
@ent the 8rst tele$ra!h "essa$e in
1))
1+>1 -1+(
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3istor of 4lectronics
G'G#+E#M& MA%C&(+ /Deelo!ed the 8rst !racticalinentions in radio tele$ra!h oerlon$ distances.
Receied the 8rst trans-atlanticradio si$nal in 1>21.Receied the nobel !rie for 2
AMB%&+$E ,#EM+(G A(D#EE DE ,&%E$!- Inentedthe acuu" tubeIn 1>2( . Lee de =orestdeelo!ed the acuu" tube
a"!li8er in 1>2'.
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3istor of 4lectronics
Nic% 3olona%? Ar. - inented the 8rstisible-s!ectru" L4D in 1>'( whilewor%in$ as a consultin$ scientist ata Beneral 4lectric Co"!an
laborator in @racuse? New or%.
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3istor of 4lectronics
&"( BA%DEE(0
*+##+AM $"&C1#EA(D *A#!E% B%A!!A+(- Inented the transistorin 1>)
Receied the nobel !rie
Aohn,ardeen
Willia"@hoc%le
Walter,rattain
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3istor of 4lectronics
Robert NortonNoce
Aac% Eilb
%&BE%! (&%!&( (&CE A(D AC1
1+#B - Inented the inte$rated circuit # IC&in 1>*.Noce was one of the founders of INT4L ? thelar$est chi! "a%er.
Eilb inented the calculator and won thenobel rie for
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,asic 4lectronicCo"!onents
SWITCHES
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&'!P'! DE)+CE$
LIGHT OUTPUT
SOUND OUTPUT
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=IG4D R4@I@TOR@
CARBON COMPOSITION RESISTOR WIREWOUND RESISTOR
METAL FILM RESISTOR SURFACE MOUNT DEVICE( SMD) CHIP TYPE RESISTORS
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7RI,L4 R4@I@TOR@
WIREWOUND POTENTIOMETER
TRIMMER
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C
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+(D'C!&%$
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!"+(G$ (EEDED
BREADBOARD
ANALOG TYPE DIGITAL TYPE
MULTITESTER
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SOLDERING IRON PLIERS
DESOLDERING TOOL TOOL BOX
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WIRE STRIPPER SOLDERING LEAD
PRINTED CIRCUIT BOARD FERRIC CHLORIDE
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!"+(G$ !& %EMEMBE%
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E,,EC! &, C'%%E(! &(!"E "'MA( B&D
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Basic Parameters o a Circuit
7olta$e or e"f # 7& 5 the force that !ushesthe electrons to "oe? "easured in olts # 7&
Current # I& 5 the a"ount of char$es 9owin$in the circuit H deice ? "easured in a"!ere #
& Resistance # R& 5 the o!!osition to the 9ow of
current ? "easured in oh"s # &
&hm2 s #aw
7 J IR