9 Ley de Faraday PDF
August 13, 2022 | Author: Anonymous | Category: N/A
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@ägtir Nbrgi ^
Eay ma Cbrbmby
GB\D]QEI 4
EAT MA CB^BMBT 4.2
DO]^IMQGGD×O Ao ae gbpètuei botardir sa insarv÷ qua axdsta uob raebgd÷o èotdhb aotra eb aeagtrdgdmbm y ae hbkoatdshi. Ao asta gbpètuei sa prasaotb uob eay cèsdgb ouavb, eb Eay ma Cbrbmby. Botas ma qua Cbrbmby masgunrdarb eb eay ma domuggd÷o aeagtrihbkoätdgb gioigdmb sdhpeahaota gihi Eay ma Cbrbmby ao 2072, eb aoarkèb ao arkèb aeägtrdgb utdedzbnea sa intaoèb b pbrtdr ma prigasis quèhdgis gihi gih i pdebs i nbtarèbs. Gio astb ouavb eay as pisdnea intaoar aoarkèb aeägtrdgb b pbrtdr ma prigasis hagâodgis mbomi irdkao b eis kaoarbmiras aeägtrdgis. Astb eay astbneaga qua uo ceufi hbkoätdgi vbrdbnea ao uob rakd÷o mae aspbgdi, domuga uo gbhpi aeägtrdgi ao astb hdshb rakd÷o b ei ebrki ma uob trbyagtirdb garrbmb.
HDG@AE CB^BMBT (2;42-203;) DOKEB]A^^B
4.>
Eb eay ma Cbrbmby tdaoa bpedgbgdioas tagoie÷kdgbs trbsgaomaotas, as eb raspiosbnea ma eb kaoarbgd÷o ma aoarkèb aeägtrdgb y masahpaòb uo pbpae dhpirtbota ao eb hbyirèb ma eis brtègueis aeägtrdgis qua utdedzbhis.
EAT MA EB DOMQGGD×O AEAG]^IHBKOÄ]DGB AEAG]^IHBKOÄ]DGB
Eb cuarzb aeagtrihitrdz (cah) domugdmb aotra eis tarhdobeas ma uob nindob as dkube be vbeir oakbtdvi ma eb rbpdmaz gio qua vbrèb ae ceufi hbkoätdgi qua btrbvdasb mdg`b nindob. I sab6
8 ∞
(4.2)
mioma, O as ae oöhari ma aspdrbs.
4.7
EAT MA EAOV
Eb eay ma Eaoz ao `ioir b @adordg` Crdamrdg` Ahde Eaoz aouogdbmb ao 207= , sa utdedzb pbrb `beebr ae saotdmi ma eb cuarzb aeagtrihitrdz domugdmb. Eb girrdaota domugdmb bpbraga ao uo saotdmi tbe qua sa ipioa b eb gbusb qua eb primuga.
Cdk. 4.2 Waotdmi ma eb girrdaota domugdmb mandmi b eb eay ma Eaoz. 2
@ägtir Nbrgi ^
4.=
Eay ma Cbrbmby
CQA^VB AEAG]^IHI]^DV AEAG]^IHI]^DV DOMQGDMB \I^ HISDHDAO]I
Wupiokbhis uo giomugtir qua sa huava gio uob vaeigdmbm v maotri ma uo gbhpi hbkoätdgi uodcirha y giostbota N , gihi sa huastrb ao eb Cdk. 4.>. Eis pirtbmiras ma gbrkb mae giomugtir axpardhaotbrâo uob cuarzb hbkoätdgb C h b ei ebrki mae giomugtir, mandmi b asti eis aeagtrioas sa hivarâo `bgdb ae axtrahi docardir y sa bguhuebrâo b`è, mafbomi uob gbrkb oatb pisdtdvb ao ae axtrahi supardir. Astb piebrdzbgd÷o ma gbrkbs kaoarbrâo uo gbhpi aeägtrdgi maotri mae giomugtir ao saotdmi giotrbrdi b eb cuarzb hbkoätdgb. Eeakb uo hihaoti ao qua eb cuarzb hbkoätdgb C h sa aqudednrb gio eb cuarzb aeägtrdgb C, ma tbe hboarb qua,
Cdk. 4.> Cah domugdmb pir hivdhdaoti.
⃛ 8 Û⃛ ⃛ 8 ⃛ ∽ ⃛ 8 ∞⃛ ⃛ 8 ∞ Û⃛ ⃛ 8 ∞ Û⃛ Wa sbna qua eb mdcaraogdb ma pitaogdbe aotra mis puotis as,
bn8 - ∪ ⃛.⃛
bn8 - -∪∪ ∞( Û⃛ ).⃛
Eb cuarzb aeagtrihitrdz domugdmb ao eis axtrahis mae giomugtir vdaoa axprasbmb pir eb sdkudaota agubgd÷o
8 ∪ (⃛ Û⃛).⃛ 4.1
(4.>)
GBH\I HBKOA]DGI SB^DBNEA AO AE ]DAH\I
Gubomi uo gbhpi hbkoätdgi vbrèb ao ae tdahpi ao uob rakd÷o mae aspbgdi, sa domuga uo gbhpi aeägtrdgi giosarvbtdvi gihi sa huastrb ao eb Cdk. 4.7. \ir ei tboti, saköo eb eay ma Cbrbmby, sa tdaoa qua, >
oi
@ägtir Nbrgi ^
Eay ma Cbrbmby
8 ∞ Σ
Cdk. 4.7 Mdraggd÷o y saotdmi mae gbhpi aeägtrdgi domugdmi pir eb vbrdbgd÷o ma uo gbhpi hb oätd oätdgi gi..
∯⃛. 8 ∞ Eb axprasd÷o botardir, vdaoa b sar eb eay ma Cbrbmby ao tärhdois mae gbhpi aeägtrdgi domugdmi.
7
(4.7)
@ägtir Nbrgi ^
Eay ma Cbrbmby
\^INEAHBW ^AWQAE]IW 4.2
Ao eb cdkurb sa huastrbo mis nbrrbs giomugtirbs qua sa huavao `bgdb bcuarb gio vaeigdmbmas y
v > 8 0 d h/s
˃
ao uo gbhpi hbkoätdgi
N 8 .1 d
˃
h/s
`beea ae vietbfa ma n raspagti ma g.
n
8
A bn
( ( (
(v2 N ). m e
b
8
A nb
n
∞ 2>.1 d N ). m e
g
m
A g m
8
.0 ). m z 8 2.=
S
<
∞ Sg 8 >.24 ∞ ( ∞2.=) 8 7.14 S
Eb aspdrb giomugtirb gdrguebr gdrguebr qua bpbraga ao eb cdkurb, ybga ao ae peboi z 8 0 Gis2< 7 t
S
7
8∞
3.>0 Gis2< t 1
8 ∞2.>1 Gis2< 7 t
B
\ir eb eay ma Eaoz, eb girrdaota domugdmb ao eb aspdrb as gihi sa huastrb ao eb cdkurb. 4.7
Qob nindob giostb ma ma > . Wa bpedgb uo gbhpi hbkoätdgi uodcirha y parpaomdguebr be peboi ma eb nindob. Wd ae gbhpi hbkoätdgi gbhndb edoabehaota ma < b ao uo tdahpi ma
B 8 ( 8 ( ∞ v E N 8 h m v
m t
^
m v
v
> > 8 ∞ E N m t
h ^
v v E N 8 ∞ 8 a t h ^ v i v i >
>
Eo
`bgdaomi,
ύ
8
h ^ >
E N
>
∞
v 8 vi a
E> N > h ^
∞
t
t ύ
^aahpebzbomi ao eb axprasd÷o (>), d
EN v i 8
t
a
∞
ύ
^
1
@ägtir Nbrgi ^
4.3
Eay ma Cbrbmby
Ao uob rakd÷o gdrguebr ma rbmdi ^ axdsta uo gbhpi hbkoätdgi qua vbrèb saköo m N/ N/m t. t. Matarhdoa ae gbhpi aeägtrdgi domugdmi pbrb6 b) r 5 ^, n) r ? ^.
b)
A.m e
8 ∞ O
m σ
A e 8
∞
(
m N B
)
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>
∞ ό ^
A
m t
4.;
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m N
m t
8 ∞ ό r >
m t
m N r > m t
2
8∞
m N ^ > m t r
>
2
8∞
Qob nbrrb ma hatbe ma 2 h gba ednrahaota ao pisdgd÷o `irdziotbe gio sus sus axtrahis domdgbomi ae Asta Asta y Iasta. @beea eb mdcaraogdb ma pitaogdbe qua axdsta aotra sus axtrahis gubomi `b gbèmi >< h. Eb gihpioaota `irdziotbe mae gbhpi hbkoätdgi tarrastra as 2.; x 2< -1 [n/h>.
v
>
8 v
A 8
4.0
82
m N
m N
A > ό r 8
A
O
m t
g
> i
∞
N e v
8
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8
∞
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(24 0) 2 ; .
v
.
2< ∞ 1 2
x
8
8
< 773 77 3 .
∞
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∞
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h s
hS
Qob girrdaota girrdaota D ma >< B ceuya pir uo bebhnra bebhnra ragti ragti sdtubmi sdtubmi ao ebs gargboèbs ma uob uob aspdrb aspdrb ragtbokuebr, gihi sa huastrb ao eb cdkurb. Wd eb girrdaota sa suspaoma y eeakb b gari ao < gh, n 8 7< gh y O 82. A 8
ΝΣ
∞ O
Νt
Σ N
NB
8
εi D
8
m Σ
> ό r 8
m
8
Σ8
N m B
m B
8 n
m r
εi D
n m r > ό r
`
+b
ε i D n > ό r
`
8 2.72x2< ∞ 3 A 8
∞ (2)
m r 8
ε i D n >ό
[anar
Ν Νt
` + b `
Eo
∞ ( 2.72x2< 8∞
ό m m m t m
ε i β n
>ό
b + m m
Eo
Eb girrdaota domugdmb tdaoa mdraggd÷o botd`irbrdb.
;
8 n m r
> ό r
8
8
A 8
m B
εi D
8
m Σ
εi D
n m r > ό r
ε i D n >ό
b + m
m
m r
r
8
ε i D n >ό
b + m m
Eo
@ägtir Nbrgi ^
Eay ma Cbrbmby
\^INEAHBW \^I\QAW]IW Qo ârab ma ao ae peboi z 8 < astâ aogarrbmb pir uo cdebhaoti giomugtir. @beea eb cah domugdmb ] sbndaomi qua6
2-
⃛ 8=
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