Odpowiedź :
Odpowiedź:
R = 5 Ω
t =2min = 120s
I = 2A
------------------------
W = ?
U = I*R = 2A*5Ω = 10 V
Q = I*t = 2A*120s = 240C
W = U*Q = 10V*240C = 2400 J = 2,4 kJ
W = 2,4 kJ
Odpowiedź:
R = 5 Ω
t =2min = 120s
I = 2A
------------------------
W = ?
U = I*R = 2A*5Ω = 10 V
Q = I*t = 2A*120s = 240C
W = U*Q = 10V*240C = 2400 J = 2,4 kJ
W = 2,4 kJ