
Electricitate
Authored by Carmen Filip
Physics
10th Grade
Used 74+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Intensitatea curentului electric se măsoară în:
V
A
W
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rezistența electrică este egală cu raportul dintre:
I și P
U și W
U și I
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energia electrică se măsoară în:
J
W
V
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Voltmetrul se conectează într-un circuit:
în serie
în paralel
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Randamenul electric se măsoară în:
V
W
este adimensional
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În cazul grupării paralel a doi rezistori:
R = R1 + R2
1/R = 1/R1 + 1/R2
R = R1 - R2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un rezistor având rezistența R este legat la bornele unei surse de tensiune având rezistența internă r.Tensiunea la bornele sursei este egală cu tensiunea electromotoare dacă:
R=0
R=r
R este mult mai mare ca r
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