Guia 4 de Circuitos

 

QHC_ARPCDED DA JRCAHTA AP@QAFE DA PCPTAKEP EPCLHETQRE DA @CR@QCTJP S PCPTAKEP Luce 4 `cr`uctjs da prckar y saluhdj jrdah

5-Qh `cr`uctj R@ aha R;2ℯ y @;4O. Fe `jhstesta da akpj as da7 e) >.1 s

b) 2 s

`) 4s

d) =s

a) 51s

2-Ah fe olure, Pae v @ (>);51_. Meffa v@ ,vx a cx pere t8>. R5;1ℯ R2;=ℯ R0;52ℯ @;>.5O

0-Fe `jhstehta da akpj da uh `cr`uctj RF `jh ` jh R;2ℯ y F;4M as da7 e) >.1 s

b) 2 s

`) 4s

d) =s

a) 51s

4-Qh `epe`ctjr ah uh `cr`uctj R@ `jh R;2ℯ y @;4O @ ;4O sa astå `erlehdj. Af akpj raquarcdj pere qua fe tahscðh daf `epe`ctjr ffalua e ?0.2% da su vefjr da astedj astebfa as da7 e) 2 s

b) 4 s

`) =s

d) 5?s a)hchluhj da fjs ehtarcjras

1-Qh `cr`uctj RF aha R;2ℯ y F;4M. Af akpj ha`asercj ha`a sercj pere qua fe `jrrcahta daf chdu`tjr ffalua e 4> pjr `cahtj da su vefjr da astedj astebfa a stebfa as da7 e) >.1 s

b) 5s

`) 2s

d) 4s

a)hchluhj da fjs ehtarcjras

?-Ah af `cr`uctj da fe olure, fe tahscðh daf `epe`ctjr gustj ehtas da t;> as da 7 e) 5> _

b) < _

`) ?_

d) 4_

a) >_

Ouahta 5> _ R5;0 ℯ R2;2 ℯ @;< O

t;>

 

);0>_. Datarkcha v@ , v] a C> pere t≡ R5;52 ℯ R2;? ℯ R0;= ℯ @;5/0 O  _, 5> a−>.21 t  _, −2.1 a

−>.21 t 

Raspuaste 0> a

−>.21 t 

 E

=-Af chtarruptjr daf `cr`uctj da fe olure me astedj `arredj ku`mj akpj, y sa ebra ah t;>. Meffa v(t) pere t≡>. @ef`ufa fe aharlëe chc`cef efke`ahede ah af `epe`ctjr. R5;0ℯ

t;>

R2;3ℯ R0;5ℯ @;2>kO Ouahta ;2>_ 3-Pc af chtarruptjr sa ebra ah t;>, Meffa v(t) pere t≡> y w@ (>) R5;?ℯ

t;>

R2;52ℯ R0;4ℯ @;5/?O Ouahta;24_ Raspuaste = a−2 t _, 1.00 G 5>-Pc af chtarruptjr sa ebra ah t;>, Meffa _(t) pere t≡> y w@(>) Ouahta;24 _ R5;?ℯ R2;52ℯ R0;4ℯ @;5/?O Raspuaste = a−2 t  _, 1.00 G

t;>

 

55-Pupjhcahdj qua c(>);5>E, `ef`ufa c(t) a cx (t) ah af `cr`uctj da fe olure. R5;2 R2;4 F;>.1M Ouahta;0c −( 2 / 0) t 

−( 2/ 0 ) t 

 E, c x (t ) ;−5.???< a

Raspuastec ( t );5> a

E

52-Meffa c y v] ah af `cr`uctj da fe olure. Pae c(>);1 E Ouahta ;2_] R5;0ℯ R2;5ℯ R0;1ℯ F;5/?M 50-Af chtarruptjr daf `cr`uctj da fe olure me astedj `arredj ku`mj akpj. a kpj. Ah t;>, af chtarruptjr sa ebra. @ef`ufa c(t) pere t≡> R5;2ℯ

t;>

R2;52ℯ

c(t)

R0;4ℯ R4;5?ℯ F;2M Ouahta ;4>_ Raspuaste c ( t );? a−4  E t 

 

54-Ah raarah`ce ef `cr`uctj da fe olure, meffa c(t) pere t8> R5;52

t;>

R2;1 R0;= F;2M Ouahta ;1E Raspuaste 2 a−2 t  E 51-Ah af `cr`uctj qua sa huastre ah fe olure, olure, meffa c v c pere tjdjs fjs a akpjs, kpjs, supjhcahdj qua af chtarruptjr astuvj ebcartj ku`mj akpj. R5;2 R2;0 R0;? F;2M Ouahta;5>_ 5?-Ah rafe`cðh `jh af `cr`uctj da fe olure, fe tahscðh ta hscðh ah af `epe`ctjr ah t;>-  (gustj ehtas ehtas qua af chtarruptjr sa `carra) as da7 e) >_

b) 4 _

`) =_

t;> d) 52 _.

R5;2ℯ R2;4ℯ F;5M @;2O 5) as da7 e) >E

b) 2E

`) ?E

d) 52 E.

5=-@uehdj uhe ahtrede as`efðh sa epfc`e e uh `cr`uctj da saluhdj jrdah, fjs vefjras ohefas da fes vercebfas da `cr`uctjs sa meffeh kadcehta7 e) Af rakpfezj rakpfezj da fjs `epe`ct `epe`ctjras jras pjr `cr`uctj `cr`uctjss `arredj `arredjss y fjs chdu`tjras chdu`tjras pjr pjr `cr`uc `cr`uctjs tjs ebcartjs.

 

b) Af rakpfezj rakpfezj da fjs `epe`ct `epe`ctjras jras pjr `cr`uctj `cr`uctjss ebcart ebcartjs js y fjs chd chdu`tjra u`tjrass pjr `cr`uctjs `cr`uctjs `arredjs. `) Hc Hchl hluh uhj j da fj fjss ehtar ehtarcj cjras ras.. 53-Pc fes reë`as da fe a`ue`cðh `ere`tarës`e da uh `cr`uctj RF@ sjh -2 -0, fe raspuaste as7

  (  E`js 2 t + Bsah 2 t ) a b)   (  E + 2 Bt ) a

−0 t 

e)

−0t 

`)   E a−2 t + Bt a−0 t  − 2 t 

d)   E a

+B

−0 t 

a

Djhda E y B sjh `jhstehtas. 2>-Ah uh `cr`uctj RF@ ah sarca, astebfa`ar R;> prjdu`crå7 e) Qhe raspua raspuaste ste sj sjbra braekj ekjrl rlued uede e b) Qhe rasp raspuas uaste te `rë` `rë`eka ekahta hta ekjr ekjrlu luede ede `) Qhe Qhe raspu raspuas aste te sube subekj kjr rlu lued ede e d) Qhe raspua raspuaste ste hj ekjrl ekjrlued uede e a) Hc Hchl hluh uhe e da fes fes e eht htarc arcjr jras as 25-Ah fe olure R;4>ℯ, F;4M, @;5/4 O. @ef`ufa fes reë`as `ere`tarës`es `ere`ta rës`es daf `cr`uctj ʑFe raspuaste heturef astå sjbra, sub j `rë`ekahta ekjrluede:

22-Pc R;5>ℯ, F;1M y @;2kO, Meffa ε, σ > ,P5 y P2 ʑUuã pj da raspuaste heturef tahdrå af `cr`uctj :

Raspuaste7 5, 5>, -5µg3.31, subekjrluede.

 

20-Meffa c(t) ah af `cr`uctj da fe olure. Pupjhle qua af `cr`uctj me ffaledj ef astedj astebfa ah t;>- . R5;4ℯ

t;>

R2;0ℯ R0;?ℯ @;>.>2O F;>.1M 24-Ah af `cr`uctj da fe olure me ffaledj ef astedj astebfa ah t;>- . Pc af `jhkutedjr sch chtarruptjr sa kuava e fe pjsc`cðh b ah t;>, `ef`ufa c(t) pere t8>. R5;5>

e

b

R2;1 F;5M @;5/3 O Raspuaste a−2.1 ( 1 `js5.? `js5.?1=0 1=0 t − );1_, c(>);>_, F;5M, @;5>kO. @jhscdara astjs `esjs7 R;5.>20ℯ, R;1ℯ, R;?.21ℯ

2?-Da fe olure ehtarcjr, `jh`ade qua R;2ℯ, F;>.4M, @;21kO, v(>);>, c(>);0ª. Meffa v(t) pere t8>. Raspuaste 552> t a−5> t _

 

2 ah af `cr`uctj RF@ da fe olure. R5;0>ℯ R2;1>ℯ F;.>4M @;2>±O Ouahta ;4>_ 2=-Ah af `cr`uctj da ef olure. Meffa v(t) pere t8> R;2>ℯ

t;>

@;4kO F;5>M Ouahta;2E Raspuaste ??.?< ( a−5> t −a−2.1 t )_ 23-Qh `cr`uctj RF@ ah sarca aha R;5>iℯ, F;>.5kM y @;5>±O.  ʑUuã pj da ekjrluekcahtj axmcba: