Jednosmerne struje

Jednosmerne struje

9th Grade

10 Qs

quiz-placeholder

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Jednosmerne struje

Jednosmerne struje

Assessment

Quiz

Other

9th Grade

Practice Problem

Hard

Created by

Dragana Petrovic

Used 1+ times

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10 questions

Show all answers

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

Media Image

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

Media Image

Struja u kolu sa slike је 0,2А. Odrediti unutrašnju otpornost generatora.

Rg = 135 Ω\Omega

Rg = 1,5 Ω\Omega

Rg = 15 Ω\Omega

Rg = 150 Ω\Omega

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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