
Curentul electric
Authored by Rodica Cimpoiasu
Physics
8th Grade
Used 110+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rezistenţa electrică a unui conductor este dată de relaţia:
R=U/I
R=I/U
R=UI
R=E/I
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Relaţia matematică prin care se defineşte intensitatea curentului electric este:
I=qt
I=q/t
I=U/R
I=t/q
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Legea lui Ohm pentru o porţiune de circuit are expresia matematică:
I= R/U
I= U/R
I= RU
I= q/t
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Unitatea de măsură pentru intensitatea curentului electric este:
V
A
Ω
W
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tensiunea electrică se măsoară cu:
ampermetrul
ohmmetrul
voltmetrul
contorul electric
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Este conductor electric:
Aluminiul
Lemnul
Plasticul
Cauciucul
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pe un radiator sunt înscrise valorile nominale: tensiune 220V şi rezistenţa 22 Ω.Intensitatea curentului electric ce trece prin radiator are valoarea:
11A
0,1A
10A
20A
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