Odpowiedź:
U = 6V
I = 0,6 A
t = 30min = 30*60s = 1800 s
--------------------------------------------
P, W ?
P = U*I = 6V*0,6A = 3,6 W
P = 3,6 W
W = P*t = 3,6W * 1800s = 6480 J
W = 6480 J = 6,48 kJ
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Odpowiedź:
U = 6V
I = 0,6 A
t = 30min = 30*60s = 1800 s
--------------------------------------------
P, W ?
P = U*I = 6V*0,6A = 3,6 W
P = 3,6 W
W = P*t = 3,6W * 1800s = 6480 J
W = 6480 J = 6,48 kJ