Praca i moc prądu elektrycznego
Quiz
•
Physics
•
7th - 12th Grade
•
Hard
J S
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Który z podanych wzorów przedstawia wzór na napięcie elektryczne?
I = q/t
U = W/q
W = U * I
U = W * Q
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co jest jednostką mocy prądu?
1 W (wat)
1 J (dżul)
1 C (kulomb)
1 dB (decybel)
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Jednostkami pracy prądu są:
watosekunda (1 Ws)
kilowatogodzina (1 kWh)
wat (1 W)
dżul (1 J)
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Jaka jest praca prądu elektrycznego przepływającego przez żarówkę halogenową reflektora samochodowego, jeżeli: U = 11 V, I = 7 A, w czasie 12 minut?
0,924 kJ
55 440 J
924 J
55,44 kJ
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Czajnik elektryczny ma moc P = 3000 W. Jaką pracę wykona prąd przepływający przez nią w ciągu 4 minut?
720 000 J
12 000 J
14 kJ
1 200 J
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ile ok. mocy pobiera odkurzacz?
800 W
2000 W
1600 W
150 W
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Iloraz pracy prądu (W) i czasu (t), w którym praca została wykonana, nazywamy...?
mocą
drogą
pracą
prądem
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