Ishi rl va rc-zanjirlarini oʻzgaruvchan chastotalarda


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Variant 0

U = 2 [V],

R = 1 [kOm],

L = 25 [mGn].

1∙103



Generator chastotasini hisoblaymiz: =

=

= 6369 [퐻푧]



2∙3,14∙25∙10−3

2휋퐿



Zanjirdagi tokni qayidagi ifoda orqali hiosblab topamiz:

U

Z

U

I

;



( L)

2

R

2

bu yerda, = 2휋푓.

Shuning uchun avval tsiklik chastotani hiosblab olamiz:

= 2휋푓



= 2 3,14 1274 8 103



1

= 2 3,14 3184,5 20 103

2

= 2 3,14 6369 40 103



3

= 2 3,14 9553,5 60 103

4

= 2 3,14 12738 80 103



5

Demak, yuqoridagilarga asoslanib tokni hisoblaymiz:

2

1 =

2 =

3 =

4 =

5 =

= 1,961 10−3 = 1,961 [푚퐴]

= 1,789 10−3 = 1,789 [푚퐴]

= 1,418 10−3 = 1,418 [푚퐴]

= 1,112 10−3 = 1,112 [푚퐴]

= 0,893 10−3 = 0,893 [푚퐴]



(1 103)2 + (8 103 25 10−3)2

2

(1 103)2 + (20 103 25 10−3)2

2

(1 103)2 + (40 103 25 10−3)2

2

(1 103)2 + (60 103 25 10−3)2

2

(1 103)2 + (80 103 25 10−3)2

Qarshilikdagi kuchlanish pasayuvini hisoblaymiz:



R

Z

RU

( L)





U R I U

;

R



R

2

2



() =

= = 1 103 1,961 10−3 = 1,961 []

푅1

1

= = 1 103 1,789 10−3 = 1,789 []



푅2

2

= = 1 103 1,418 10−3 = 1,418 []



푅3

3

= = 1 103 1,112 10−3 = 1,112 []



푅4

4

= = 1 103 0,893 10−3 = 0,893 []



푅5

5


Induktivlikdagi kuchlanish pasayuvini hisoblaymiz:



L

Z

LU



U LI U

;



L

R

2

( L)



2

() = 퐿퐼



= 퐿퐼 = 8 103 25 10−3 1,961 10−3 = 0,392 []

퐿1

1



1

= 퐿퐼 = 20 103 25 10−3 1,789 10−3 = 0,894 []

퐿2

2

2



= 퐿퐼 = 40 103 25 10−3 1,418 10−3 = 1,418 []

퐿1

1



1

= 퐿퐼 = 60 103 25 10−3 1,112 10−3 = 1,668 []

퐿1

1

1



= 퐿퐼 = 80 103 25 10−3 0,893 10−3 = 1,786 []

퐿1

1



1

Fazani hisoblaymiz:

arctg ZL arctg UU

.

L



R

()

= 푎푟푐푡푔



()

(1) = 푎푟푐푡푔 0,392

= 푎푟푐푡푔

= 11,3°

1

1,961



0,894

푅(1)


(2)

= 푎푟푐푡푔

= 푎푟푐푡푔 1,789 = 26,5°

1,418


2

푅(2)


= 푎푟푐푡푔

= 푎푟푐푡푔

= 45°

퐿(3)


3

(3)

(4)

1,418


= 푎푟푐푡푔

= 푎푟푐푡푔 1,668 = 56,3°

1,112

4

푅(4)



(5)

= 푎푟푐푡푔 1,786 = 63,4°

= 푎푟푐푡푔

5

(5)



0,893

Barcha hisoblangan qiymatlarni 4.2- jadvalga kiritamiz.



4.4. Ishni bajarish

4.6- rasmda kеltirilgan sxеmani NI MultiSim muhitida yiing.

4.6- rasm. Tеkshirilayotgan RLzanjir sxеmasi



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