
Curentul electric (1)
Authored by DANCILA EMILIA
Physics
8th Grade
Used 9+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reprezintă „Mișcarea ordonată (dirijată) a purtătorilor de sarcină electrică”
curentul electric
circuitul electric
generatorul electric
scurtcircuitul
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prin convenţie, într-un circuit simplu, curentul electric circulă:
de la „+” la „–” prin circuit, în exteriorul bateriei
de la „+” la „–” prin baterie
de la „–” la „+” prin circuit, în exteriorul bateriei
într-un sens ce depinde de materialul din care sunt confecționate firele
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unitatea de măsură pentru rezistența electrică este
ohmul (Ω)
coulombul (C)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unitatea de măsură pentru tensiunea electrică este:
ohmul (Ω)
coulombul (C)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cum variază rezistența electrică a unui fir conductor dacă îi mărim lungimea de 3 ori?
Crește de 3 ori
Scade de 3 ori
Crește de 9 ori
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Legea lui Ohm pentru un circuit simplu se scrie:
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tensiunea electromotoare a unui generator depinde de configuraţia circuitului exterior.
Adevărat
Fals
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