
electricitate
Authored by dragostina radulescu
Physics
8th - 9th Grade
Used 186+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sarcina electrica este marimea fizica ce caracterizeaza starea de electrizare a corpurilor. Unitatea de masura a sarcinii electrice in S.I. este :
coulombul
volt
joule
watt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Curentul electric se defineste ca fiind :
miscarea dezordonata a purtatorilor de sarcina electrica
deplasarea ordonata a purtatorilor de sarcina electrica
miscarea browniana
diferenta de potential electric de la capetele unui conductor
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Ampermetrul legat in serie intr-un circuit electric masoara :
tensiunea electrica la capetele consumatorului
lucrul mecanic efectuat de fortele electrice pentru a deplasa purtatorii de sarcina electrica
intensitatea curentului electric ce strabate acel circuit
rezistenta electrica
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tensiunea electromotoare , notata cu E se masoara in :
volti
amperi
watt
ohm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rezistenta electrica a unui rezistor , care se noteaza cu R se masoara in ;
joule
ohm
volt
watt
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Legea lui Ohm pentru o portiune de circuit se defineste prin urmatoarea expresie matematica:
I= U.R
R=U/I
I=U/R
R=U.I
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Energia electrica consumata in timpul functionarii de un consumator oarecare depinde de :
puterea lui electrica si timpul de functionare
tensiunea nominala aplicata la capetele lui
tensiunea electromotoare
produsul dintre U si I
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