
IX-a Test recapitulativ Legile de Baza ale electrotehnicii
Quiz
•
Education, Other
•
9th Grade
•
Hard
Hallof Emerik
Used 5+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rezistenta electrica a trei rezistoare avand aceeasi rezistenta electrica R si care sunt conectate in serie este:
R/3
3R
3/R
aceeasi
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Caldura "Q" dezvoltata prin efectul Joule intr-un circuit se calculeaza cu formula:
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Raportul dintre intensitatea curentului electric si aria sectiunii unui conductor reprezinta densitatea de curent?
Adevarat
Fals
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Legea lui Ohm se exprima prin relatia matematica
R=U*I
R=U/I
U=R*I
U=R/I
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Un rezistor cu rezistenta electrica R de 2KOhm caruia is se aplica la borne tensiunea U de 14 mV este parcurs de curentul un curent I de.....mA.
Determinati valoarea
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energia electria se calculeaza cu formula
7.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Puterea electrica consumat de un resou alimentat la tensiunea 220V avand valoarea rezistentei de 100Ohm este....W ?
8.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Teorema I al lui Kirchoff spune ca
Suma curentilor care intra in nod este constanta
Suma curentilor care intra in nod este egala cu patratul sumei curentilor care ies
Suma curentilor care intra in nod este egal cu suma curentilor care ies din nod
Suma algebrica a curentilor care se intalnesc in nod este egala cu 0
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Formula din imagine reprezinta
Formula lui Joule-Lenz
Formula lui Ohm
Teoremea a II al lui Kirchhoff
Teoremea a I al lui Kirchhoff
Teorema curentului electric
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