
Jednosmerne struje
Authored by Dragana Petrovic
Other
9th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Kako se predstavlja realan električni generator?
unutrašnjom otpornošću
elektromotornom silom
naponom na krajevima generatora
unutrašnjom otpornošću i elektromotornom silom
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Unutrašnja otpornost idealnog naponskog generatora je:
jednaka nuli
približno jednaka nuli
beskonačno velika
veća od 3 oma
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Napon na krajevima generatora kada kroz njega ne teče struja
jednak je elektromotornoj sili generatora
jednak je nuli
ne može se odrediti
beskonačno je veliki
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Odrediti struju u kolu na slici:
I=0,29A i teče u smeru suprotnom kretanju kazaljke na satu
I=0,29A i teče u smeru kretanjа kazaljke na satu
I=3,47A i teče u smeru suprotnom kretanju kazaljke na satu
I=3,47A i teče u smeru kretanjа kazaljke na satu
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Struja u kolu sa slike је 0,2А. Odrediti unutrašnju otpornost generatora.
Rg = 135
Rg = 1,5
Rg = 15
Rg = 150
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koeficijent korisnog dejstva u električnom kolu se definiše kao:
proizvod snage prijemnika i snage generatora
količnik snage prijemnika i snage generatora
zbir snage prijemnika i snage generatora
količnik snage generatora i snage prijemnika
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Ako je Pg=10W, a Pk=8W koeficijent korisnog dejstva je:
1,25 (125%)
0,125 (12,5%)
0,8 (80%)
0,08 (8%)
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