Module 03. Electrical
Module 03. Electrical FundamentalsFundamentals 01. Electron Theory.
01. Electron Theory. Q
Quueessttiioon n NNuummbbeerr.. 11.. A A nneeuuttrroon n hhaass.. Op
Optition on AA.. ththe ope oppoposisite cte chahargrge to e to an Ean Elelectrctron bon but hut half alf ththe wee weigight oht of a prf a prototonon.. Op
Optition on B.B. ththe se samame ce chahargrge ae as as an En Elelectctroron bn but ut hahalf lf ththe me masass.s. Op
Optition on C.C. no no eleelectctricrical al chchararge ge bubut wt wilill al add dd weweigight ht to to ththe ne nucucleuleus.s. Co
Corrrrecect At Ansnswewer isr is.. no elno elecectrtricical cal chhar ar ge but will add weight to the nucleus.ge but will add weight to the nucleus. E
Expxplalananatitionon.. NINI..
Qu
Quesestition on NuNummbberer.. !..! ""hhe ue uninit wt whihich ch coconnsisiststs os of tf two wo or or mmorore de dififfefererent nt t#t#pepes os of af atotomsms is $nown as a.
is $nown as a. O
Oppttiioon n AA.. ppaarrttiicclle oe of af an n eelleemmeenntt.. O
Oppttiioon Bn B.. mmoolleeccuulle oe of a f a ccoommppoouunndd.. O
Oppttiioon n CC.. mmoolleeccuulle e oof f aan n eelleemmeenntt.. Co
Corrrrecect At Ansnswewer isr is.. molemolecucule ole of a cf a comompopounund.d. E
Expxplalananatitionon.. NINI..
Qu
Quesestition on NuNummbberer.. %..% In In whwhat at e&e&uuipipmmenent it is a s a phphototoon rn radadiaiateted d whwhen en an an elelecectrtron on lelea'a'eses a hole(.
a hole(. O
Oppttiioon n AA.. ))hhoottoo**cceellll.. O
Oppttiioon n BB.. EE++.. O
Oppttiioon n CC.. ))hhootto o ddiiooddee.. C
Coorrrreecct t AAnnsswweer r iiss.. EE++.. E
Expxplalananatitionon.. NINI..
Q
Quuesesttiioon Nn Nuummbberer.. ,,.. A A ggooood ed ellececttririccaal il innsusullaatitinng mg maateteririaal wl wiilll cl coonnttaiainn.. Op
Optition on AA.. OnOnl# a sl# a smamall nll numumbeber of er of eleclectrotrons ins in thn the oue outeter shr shell ell of eof eacach ath atom oom of thf thee material.
material. Op
Optition on B.B. ststrorongngl# l# bobounund d elelectectrorons ns in in ththe ae atomtoms os of tf the he mamateteriarial.l. Op
Optition on C.C. --eea$a$l# l# bobounund d frefree ee elelectctrorons ns in in ththe ate atomoms os of tf the he mamateteriarial.l. Cor
Correct rect AnAnsweswer is.r is. strstrongongl# bl# bounound eld electrectrons ons in tin the ahe atomtoms of s of the the matmateriaerial.l. E
Expxplalananatitionon.. NINI..
Qu
Quesestition on NuNummbberer.. //.. ""hhe se smamallllesest pt parartiticlcle te thhat at a sa sububststanance ce cacan bn be se spplilit at annd sd shohow tw thehe same properties as the whole is $nown as.
same properties as the whole is $nown as. O
Oppttiioon n AA.. aan n EElleemmeenntt.. O
Oppttiioon n BB.. a a 00oolleeccuullee.. O
Oppttiioon n CC.. aan n AAttoomm.. C
Coorrrerect ct AAnnsswweer ir is.s. aan n AAttoomm.. E
Expxplalananatitionon.. NINI..
Q
O
Oppttiioon n AA.. ))oossiittii''ee.. O
Oppttiioon n BB.. NNeeuuttrraall.. O
Oppttiioon Cn C.. NNeeggaattii''ee.. C
Coorrrerect ct AAnnsswweer ir is.s. ))oossiittii''ee.. E
Expxplalananatitionon.. NINI..
Q
Quuesesttiioon Nn Nuummbberer.. 22.. --hhat at iis ts thhe me maxaxiimmuum nm nuummbber er oof ef elleectctrroonns is in sn shheelll N l N oof af ann atom(. atom(. O Oppttiioon n AA.. 1133.. O Oppttiioon n BB.. %%!!.. O Oppttiioon n CC.. 11.. C
Coorrrreecct t AAnnsswweer ir iss.. %%!!.. Expla
Explanationnation.. 4hell $ 4hell $ 5 ! elec5 ! electrons6 trons6 shell shell 5 3 elect5 3 electrons6 rons6 shell 0 shell 0 5 13 el5 13 electronectrons and shs and shell Nell N 5 %! electrons 7or use the !n! exclusion rule8.
5 %! electrons 7or use the !n! exclusion rule8.
Q
Quueessttiioon n NNuummbbeerr.. 33.. AAn n ooxx##ggeen n mmoolleeccuulle e iis s mmaadde e uup p ooff.. Op
Optition on AA.. twtwo oo ox#x#gegen an atotoms ms shshararining ng neueutrtroonsns.. Op
Optition on BB.. twtwo oo ox#x#gegen an atotoms ms shshararining pg prorototonsns.. Op
Optition on CC.. twtwo oo ox#x#gegen an atotoms ms shshararining eg elelectctroronsns.. Co
Correrrect ct AAnsnswewer is.r is. twtwo oxo ox##gen gen atatomoms shs shariaring ng eleelectrctronons.s. E
Expxplalananatitionon.. NINI..
Q
Quueessttiioon Nn Nuummbbeerr.. 99.. IIf ef elleeccttrroonns as arre ae addddeed td to ao an an attoom im it bt beeccoommeess.. O
Oppttiioon n AA.. a a nneeuuttrraal l iioonn.. O
Oppttiioon n BB.. a a ppoossiittii''e e iioonn.. O
Oppttiioon n CC.. a a nneeggaattii''e e iioonn.. Co
Corrrrecect t AAnsnswewer ir is.s. a na negegatati'i'e ie ioon.n. E
Expxplalananatitionon.. NINI..
Qu
Quesestition on NuNummbberer.. 1:.1:. AAn en elelemmenent wt whohose ase atotomms hs ha'a'e fe fewewer ter thahan , en , elelectctroronns is in tn theheirir 'alenc# shell are.
'alenc# shell are. O
Oppttiioon n AA.. sseemmiiccoonndduuccttoorrss.. O
Oppttiioon n BB.. ggooood d iinnssuullaattoorrss.. O
Oppttiioon n CC.. ggooood d ccoonndduuccttoorrss.. Co
Corrrrecect At Ansnswewer isr is.. ggooood cod connduductctorors.s. Expla
Explanationnation.. "he f"he further urther awa# fawa# from a rom a compcomplete shlete shell thell the bette better a coer a conducnductor it tor it is.is.
Q
Quueessttiioon n NNuummbbeerr.. 1111.. "h"he e cchhaarrgge e oon n a a pprroottoon n iiss.. O
Oppttiioon n AA.. ppoossiittii''ee.. O
Oppttiioon Bn B.. nneeggaattii''ee.. O
Oppttiioon n CC.. nneeuuttrraall.. C
Coorrrerect ct AAnnsswweer ir is.s. ppoossiittii''e.e. E
Qu
Quesestition on NuNummbberer.. 11!.!. --hahat et effffecect dt do to the he elelecectrtronons os of of one ne atatom om haha''e ue uppon on ththee electrons of another atom(.
electrons of another atom(. Op
Optition on AA.. ""hehe# h# ha'a'e ne no eo efffefect ct oon en eacach oh oththerer.. O
Oppttiioon n BB.. ""hhee# # rreeppeel l eeaacch h ootthheerr.. O
Oppttiioon Cn C.. ""hhee# a# attttrraacct et eaacch oh otthheerr.. Co
Corrrrecect t AAnsnswewer ir is.s. "h"he# e# rerepepel el eacach oh oththerer.. E
Expxplalananatitionon.. NINI..
Q
Quueessttiioon n NNuummbbeerr.. 11%%.. --hhaat t iis s a a mmoolleeccuullee((.. O
Oppttiioon n AA.. ""hhe se smmaallllesest pt paart rt oof af an an attoomm.. Op
Optition on BB.. ""he he smsmalallelest st pparart t oof f a a cocompmpouounnd.d. Op
Optition on CC.. ""he he smsmalallelest st pparart t oof f an an elelecectrtronon.. Co
Correrrect ct AAnsnswewer isr is.. "h"he sme smalallelest pst parart ot of a f a cocompmpououndnd.. E
Expxplalananatitionon.. NINI..
Q
Quueessttiioon n NNuummbbeerr.. 11,,.. AAn n aattoom m iiss.. Op
Optition on AA.. ththe sme smalalleslest pt parart of t of an ean elemlemenent tht that rat retetaiains ins its cts chahararactecterirististicscs.. Op
Optition on B.B. ththe sme smalalleslest pt parart ot of a f a cocompmpouound nd thathat ct can an exexist ist inindepdepenendedentlntl##.. Op
Optition on CC.. ththe e smsmalallelest st papartrticicle le oof f mmatatteterr.. Cor
Correct rect AnAnsweswer is.r is. the sthe smalmallest lest parpart of at of an elen elemenment that that rett retainains its cs its charharacteacteristristics.ics. E
Expxplalananatitionon.. NINI..
Q
Quueessttiioon n NNuummbbeerr.. 11//.. A A nneeuuttrroon in is a s a ppaarrttiicclle we whhiicch h iiss.. Op
Optition on AA.. is is cocontntaiainened id in n ththe ne nucucleleus us of of alall al atotomms.s. O
Oppttiioon Bn B.. oorbrbiitts ts thhe ne nuuclcleueus os of tf thhe ae attomom.. Op
Optition on C.C. is is cocontntaiainened wd witithihin tn the he nunuclcleueus os of mf mosost at atotomsms.. Co
Correrrect Act Ansnswewer is.r is. is cois contntaiainened wid withthin tin the nuhe nuclcleueus of mos of most atst atomoms.s. Exp
Explanalanatiotion.n. 0os0ost atomt atoms becs because h#ause h#drodrogen hagen has no neus no neutrotron.n.
Qu
Quesestition on NuNummbberer.. 11.. ""hhe e mmasass s of of an an atatom om is is coconntatainined ed mamaininl# l# in in ththe.e. O
Oppttiioon n AA.. pprroottoonn.. O
Oppttiioon n BB.. nnuucclleeuuss.. O
Oppttiioon Cn C.. eelleeccttrroonn.. C
Coorrrerect ct AAnnsswweer ir is.s. nnuucclleueus.s. Expla
Explanationnation.. "he pr"he proton oton and thand the neutroe neutron are apn are approxiproximatel# matel# the samthe same mass 7ne mass 7neutroeutron 'er#n 'er# slightl# hea'ier8. "he electron is ;ust under 1<!:::th of a proton or neutron.
slightl# hea'ier8. "he electron is ;ust under 1<!:::th of a proton or neutron.
Qu
Quesestition on NuNummbberer.. 112.2. --hehen an an n atatom om loloseses os or gr gaiains ns an an elelecectrtron on it it is is cacalllleded.. O
Oppttiioon n AA.. a a mmoolleeccuullee.. O
Oppttiioon n BB.. a a ccuurrrreenntt.. O
Oppttiioon n CC.. aan n iioonn.. C
Coorrrreecct At Annsswweer ir iss.. aan in ioonn.. E
Qu
Quesestition on NuNummbberer.. 13.13. A A ggooood d elelecectrtricical al ininsusulalatotor ir is s a a mmatatereriaial l whwhicichh.. Op
Optition on AA.. cocontntaiains ns a la lararge ge nunumbmber er of of poposisititi'e 'e ioionsns.. Op
Optition on B.B. hahas is its ts elelecectrotrons ns titighghtl# tl# bobounund d to to ththeieir pr pararent ent atoatomsms.. Op
Optition on CC.. hhas as mmorore pe prorototons ns ththan an elelecectrtroonsns.. Cor
Correct rect AnAnsweswer is.r is. has has its its eleelectroctrons tns tighightl# tl# boubound nd to to thetheir pir parearent ant atomtoms.s. E
Expxplalananatitionon.. NINI..
Q
Quueessttiioon n NNuummbbeerr.. 1919.. AAn n eelleeccttrriic c ccuurrrreennt t iiss.. O
Oppttiioon n AA.. aan on ordrdeerered fd flloow ow of ef ellececttrroonns.s. O
Oppttiioon n BB.. a a ssuurrpplluus s oof f ffrree ee eellececttroronn.. Op
Optition on CC.. an an exexcicitetemmenent ot of ef elelectctroronns is in a n a mmetetalal.. Co
Correrrect ct AAnsnswewer ir is.s. an an orordedered red flflow ow of of elelectectroronsns.. E
Expxplalananatitionon.. NINI..
Q
Quueessttiioon n NNuummbbeerr.. !:!:.. AAn n aattoom m ccoonnttaaiinnss.. O
Oppttiioon n AA.. hh##ddrrooggeenn.. O
Oppttiioon n BB.. mmoolleeccuulleess.. O
Oppttiioon n CC.. eelleeccttrroonnss.. C
Coorrrerect ct AAnnsswweer isr is.. eellececttrroonns.s. E
Expxplalananatitionon.. NINI..
Qu
Quesestition on NuNumbmberer.. !1!1.. =e=ermrmananiuium m anand d sisililicocon n haha'e 'e hohow w mmanan# # elelecectrtronons is in n ththeieir or oututerer shell(. shell(. O Oppttiioon n AA.. .. O Oppttiioon n BB.. ,,.. O Oppttiioon n CC.. !!.. C
Coorrrreecct t AAnnsswweer r iiss.. ,,.. Expla
Explanationnation.. All semAll semicondiconductors uctors 7inclu7including cding carbonarbon8 has , 8 has , electroelectrons in thns in their outeir outer sheller shell..
Qu
Quesestition on NuNummbberer.. !!.!!. If If a fa freree ee elelectctroron in is gs gi'i'en en to to ananoothther er atatomom6 t6 thhat at atatom om is is a.a. O
Oppttiioon n AA.. ''aalleenncc# # aattoomm.. O
Oppttiioon n BB.. nneeggaattii''e e iioonn.. O
Oppttiioon n CC.. ppoossiittii''e e iioonn.. Co
Corrrrecect t AAnsnswewer ir is.s. nnegegatati'i'e ie ioon.n. Expla
Explanationnation.. "hat a"hat atom wiltom will be nel be negati'egati'el# charl# charged dged due to tue to the addihe additional tional electroelectron.n.
Qu
Quesestition on NuNummbberer.. !!%.%. ""hhe ae atotommic ic nnumumbber er of of an an atatom om is is dedetetermrminined ed b# b# ththe ne numumbber er oof.f. O
Oppttiioon n AA.. pprroottoonnss.. O
Oppttiioon n BB.. eelleeccttrroonnss.. O
Oppttiioon Cn C.. nneeuuttrroonnss.. C
Expla
Explanationnation.. AtomiAtomic c numbnumber 5 er 5 numbenumber of r of protoprotons. 0ns. 0ass nass number umber 5 nu5 number mber of pof protonrotons >s > neutrons.
neutrons.
Q
Quueessttiioon n NNuummbbeerr.. !!,,.. ""hhe e ''aalleenncce e eelleeccttrroon n iiss.. Op
Optition on AA.. ththe ee elelectctroron in in on oututer er shshelell ol of af atotomm.. Op
Optition on BB.. ththe ee elelectctroron in in in innnener sr shhelell ol of af atotomm.. O
Oppttiioon n CC.. a a ppoossiittii''e e eelleeccttrroonn.. Co
Correrrect ct AAnsnswewer isr is.. ththe ele electectroron in in on oututer ser shehell oll of atf atomom.. Exp
Explanalanatiotion.n. "he '"he 'alealence elnce electrectrons ions is<ars<are in the oe in the outeuter shelr shell.l.
Q
Quuesesttiioon Nn Nuummbberer.. !!//.. An aAn attoom wm wiitth a h a ddeefificciieennc# c# iin en elleeccttroronns hs haas.s. O
Oppttiioon n AA.. lloow rw reessiissttaannccee.. O
Oppttiioon n BB.. hhiiggh h rreessiissttaannccee.. O
Oppttiioon n CC.. hhiiggh h iimmppeeddaannccee.. Co
Corrrrecect At Ansnswewer ir is.s. lolow rw resesisistatancnce.e. Expla
Explanationnation.. An atoAn atom with m with a deficia deficienc# oenc# of electrof electrons wilns will be pol be positi'el# siti'el# chargcharged and ed and able toable to accept electrons freel#. 0odule , theor# of holes as ma;orit# carriers.
accept electrons freel#. 0odule , theor# of holes as ma;orit# carriers.
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Quesestition on NuNummbberer.. !.!. AAn an atotom wm witith lh lesess ts thahan , n , elelecectrtroons ns in in itits os ouuteter sr shhelell hl hasas.. O
Oppttiioon n AA.. lloow ew eleleccttririccal al rreesisiststaanncce.e. O
Oppttiioon n BB.. nno o elelececttririccaal l rreesisissttaannccee.. O
Oppttiioon Cn C.. hhiiggh eh elleectctrriiccal al rreesisiststaanncece.. Co
Corrrrecect At Ansnswewer is.r is. lolow elw elecectrtricical ral resesisistatancnce.e. Expla
Explanationnation.. ow ow electricaelectrical rel resistancsistance6 e6 i.e. i.e. a ga good ood condconductoructor..
Qu
Quesestition on NuNumbmberer.. !2!2.. ElElememenents ts susuch ch as as phphoospsphohorurus s wiwith th / / elelecectrtronons is in n ththeieir or oututerer shell6 when combined with pure silicon6 is a.
shell6 when combined with pure silicon6 is a. O
Oppttiioon n AA.. iissoottooppiicc.. O
Oppttiioon n BB.. aacccceeppttoorr.. O
Oppttiioon n CC.. ddoonnoorr.. C
Coorrrerect ct AAnnsswweer r iis.s. ddoonnoorr.. Expla
Explanationnation.. )hosp)hosphoruhorus dons donates aates an electn electron tron to the o the silicosilicon cr#n cr#stal strustal structure.cture.
Q
Quueessttiioon n NNuummbbeerr.. !!33.. AAn n hh##ddrrooggeen n aattoom m ccoonnssiisst t oof f aa.. Op
Optition on AA.. ))rorototonn6 N6 Neueutrtron on anand ad an n EElelectctroron.n. O
Oppttiioon Bn B.. ))rorottoon an annd ad an En Ellececttroron on onnl#l#.. O
Oppttiioon n CC.. NNeeuuttroron n aannd d a a pprorottoon n oonnl#l#.. Co
Correrrect ct AAnsnswewer ir is.s. )r)rototon on anand ad an En Eleclectrtron on ononl#l#.. Exp
Explanalanatiotion.n. ?#?#drodrogen gen has has no no NeuNeutrotron.n.
Q
Quuesesttiioon Nn Nuummbberer.. !!99.. @@oor ar an an attoom tm to bo beeccoomme a e a nnegegaatiti''e ie ioon in it mt muustst.. O
Oppttiioon n AA.. ggaaiin n at at leleaast st oonne e eellececttrroonn.. Op
O
Oppttiioon n CC.. lloose se at at lleaeasst t oonne e eellececttrroonn.. Co
Corrrrecect At Ansnswewer isr is.. gagain ain at let leasast ot one ene elelectctroron.n. Expla
Explanationnation.. =aini=aining at ng at least least one eone electrolectron pron produces duces a nea negati'e gati'e ion.ion.
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Quesestition on NuNummbberer.. %:.%:. --hahat it is ts thhe me maxaximimum um nunummbber er of of elelecectrtronons is in sn shehell ll 0 o0 of af ann atom(. atom(. O Oppttiioon n AA.. 1133.. O Oppttiioon n BB.. .. O Oppttiioon n CC.. 11.. C
Coorrrreecct t AAnnsswweer ir iss.. 1133.. Expla
Explanationnation.. se )ause )aulis exclis exclusion lusion formuformula. 0 ila. 0 is the %rs the %rd shell d shell 7n5%8. 7n5%8. !%!%% 5 13% 5 13..
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Quesestition on NuNummbberer.. %%1.1. A A nneueutrtral al atatoom wm witith h an an atatomomic ic nono. o. of % f % hhas as hhow ow maman#n# electrons(. electrons(. O Oppttiioon n AA.. 11.. O Oppttiioon n BB.. %%.. O
Oppttiioon n CC.. ++eeppeennddanant t oon n t#t#ppe e oof f aattoomm.. C
Coorrrreecct t AAnnsswweer r iiss.. %%.. Expla
Explanationnation.. AtomiAtomic numc number 5 ber 5 numbenumber of pr of protonrotons 5 nus 5 number omber of electf electrons.rons.
Q
Quueessttiioon n NNuummbbeerr.. %%!!.. "h"he e nnuucclleeuus s oof f aan n aattoom m iiss.. O
Oppttiioon n AA.. nneeuuttrraall.. O
Oppttiioon n BB.. ppoossiittii''e e cchhaarrggeedd.. O
Oppttiioon n CC.. nneeggaattii''e e cchhaarrggeedd.. Co
Corrrrecect t AAnsnswewer ir is.s. poposisititi'e 'e chchararggeded.. Exp
Explanalanatiotion.n. NucNucleuleus is s is pospositi'iti'el# el# chachargerged.d.
Q
Quueessttiioon n NNuummbbeerr.. %%%%.. EElleeccttrroon n oorrbbiitts s aarre e ccaalllleedd.. O
Oppttiioon n AA.. wwaa''eess.. O
Oppttiioon n BB.. sshheellllss.. O
Oppttiioon n CC.. ''aalleenncceess.. C
Coorrrerect ct AAnnsswweer r iis.s. sshheellllss.. Exp
Explanalanatiotion.n. sheshells6 lls6 or or eneenerg# rg# le'le'els.els.
Q
Quueessttiioon n NNuummbbeerr.. %%,,.. A A nneeuuttrraal al attoom gm gaaiinns es elleeccttrroonnss.. O
Oppttiioon n AA.. IIt gt gaaiinns a s a ppoossiittii'e 'e chchaarrggee.. O
Oppttiioon n BB.. IIt t ggaaiinns s a a nnegegaatiti''e ce chhaarrggee.. O
Oppttiioon n CC.. IIt t rreemmaaiinns s nneeuuttrraall.. Co
Corrrrecect At Ansnswewer isr is.. It gaiIt gains a nns a negegatati'i'e che charargege.. E
Expxplalananatitionon.. NINI..
Q
Quueessttiioon n NNuummbbeerr.. %%//.. AAn n ooxx##ggeen n aattoom m hhaass.. O
O
Oppttiioon n BB.. nneeuuttrroonns s aannd d pprroottoonnss.. Op
Optition on CC.. pprorototonsns6 6 nneueutrtronons as annd d elelecectrtroonsns.. Co
Correrrect ct AAnsnswewer isr is.. prprototonons6 s6 neneututrorons ns anand ed eleclectrtronons.s. Expla