2.
U = 230 V
I = 2,3 A
-----------------
R = ?
R = U/I = 230V/2,3 A = 100Ω
R = 100 Ω
3
t = 0,5 h = 0,5*3600s = 1800 s
------------------------------------------------
W ?
P = U*I = 230V*2,3A = 529 W
W = P*t = 529W*1800s = 952 200 J = 952,2 kJ
W = 952,2 kJ
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2.
U = 230 V
I = 2,3 A
-----------------
R = ?
R = U/I = 230V/2,3 A = 100Ω
R = 100 Ω
3
U = 230 V
I = 2,3 A
t = 0,5 h = 0,5*3600s = 1800 s
------------------------------------------------
W ?
P = U*I = 230V*2,3A = 529 W
W = P*t = 529W*1800s = 952 200 J = 952,2 kJ
W = 952,2 kJ