
Kviz, osnove elektrotehnike ponavljanje

Quiz
•
Science
•
University
•
Hard
Vatroslav Bakša
Used 1+ times
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nulti harmonik predstavlja
istosmjernu komponentu
izmjeničnu komponentu
sinusoidalni član viših frekvencija
sinusoidalni član osnovne frekvencije
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Punovalni ispravljeni sinusni signal ima amplitudu 10 V. Kolika je efektivna vrijednost?
6,36 V
7,07 V
5 V
10 V
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
U neprekinutom nizu trokutastih impulsa trajanje impulsa je 1 ms. Kolika je frekvencija?
1 Hz
10 Hz
100 Hz
1000 Hz
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kolika je srednja vrijednost struje i(t) = 2 sin(ωt) A
2 A
1,41 A
0 A
0,707 A
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Početni fazni kut napona faze R je 10 stupnjeva. Koliki je početni fazni kut napona faze S?
-120 stupnjeva
-110 stupnjeva
-130 stupnjeva
130 stupnjeva
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Odaberi točnu tvrdnju.
Linijski naponi nemaju isti iznos kod simetričnog sustava.
Struja nul-vodiča jednaka je zbroju svih faznih struja.
Trofazni simetrični izvor sastoji se od 3 izvora napona različitih amplituda, međusobno pomaknutih u fazi za 120 stupnjeva.
U spoju zvijezda - zvijezda linijske struje su 1,73 puta veće od faznih struja.
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Prilikom određivanja Theveninovog otpora treba sa izvorima postupiti ovako:
strujne zamijeniti kratkim spojem
naponske odspojiti
strujne odspojiti
naponske zamijeniti kratkim spojem
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