Rezistența electrică a unui conductor este dată de relația:

Curentul electric

Quiz
•
Others
•
8th Grade
•
Easy
Daniela Pîrvu
Used 1+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
R=U/l
R=I/U
R=UI
R=E/I
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Relația matematică prin care se definește intensitatea curentului electric:
I=qt
I=q/t
I=U/R
I=t/q
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Legea lui Ohm pentru o porțiune de circuit are expresia matematică:
I=R/U
I=U/R
I=RU
I=q/t
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unitatea de măsură pentru intensitatea curentului electric este:
V
A
W
K
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tensiunea electrică se măsoară cu:
ampermetrul
ohmmetrul
voltmetrul
contorul electric
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Este conductor electric:
Cauciucul
Plasticul
Lemnul
Aluminiul
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pe un radiator sunt înscrise valorile nominale:tensiune 220V și rezistența 22Ω .Intensitatea curentului electric ce trece prin radiator are valoarea:
11A
0,1A
10A
20A
8.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tensiunea la bornele unui conductor ohmic are valoarea U=1,5V și este străbătut de un curent cu I=0,1A.Rezistența electrică a conductorului are valoarea:
1,5Ω
0,15Ω
150Ω
15Ω
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