Test electricitate

Quiz
•
Physics
•
7th Grade
•
Hard
Corina Antonache
Used 106+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cu ampermetrul se măsoară:
tensiunea electrică
intensitatea curentului electric
rezistența electrică
sarcina electrică
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Două surse identice având fiecare tensiunea electromotoare E=12V şi rezistenţă interioară r=1Ω sunt conectate în serie. La bornele grupării este conectat un rezistor de rezistenţă R=6Ω.
Intensitatea curentului prin circuit este:
I=3A
I=2A
I=0,75A
I=4A
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
În circuitul din figură curentul electric prin rezistenţa de 4Ω are intensitatea de 2 A. Rezistenţa R1 are valoarea:
R1 =5Ω
R1 =1Ω
R1 =10Ω
R1 =6Ω
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Într-un circuit, voltmetrul se leagă:
în serie cu consumatorul
în paralel cu consumatorul
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
În circuitul electric din figură se cunosc E=5V, r=1Ω, R1=2Ω, R2=1Ω şi I=0. Tensiunea electrică dintre A şi B are valoarea:
UAB=5V
UAB= -5V
UAB=0V
UAB=10V
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un acumulator cu t.e.m. E = 12V are valoarea intensităţii curentului de scurtcircuit Isc = 40 A . Rezistenţa internă a sursei este :
1,5 Ω
0,3 Ω
0,5 Ω
1Ω
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