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Primele 2 probleme, va rog.

Primele 2 Probleme Va Rog class=

Răspuns :

1)

1 kWh=3,6*10⁶ J

3,5 kWh=12,6*10⁶ J

d

2)

P=U²/R=>R=U²/P

UΔt/R=UΔtP/U²=ΔtP/U=W/U

[W/U]=J/V

c