Odpowiedzi

2010-04-06T16:46:20+02:00
Q=100C
R=20Ω
t=20s
W=?
---------------------------------------------------
q=I*t
I=q/t=100C/20s=5A
U=I*R=5A*20Ω=100V
W=U*I*t=U*q=100V*100C=10000J=10kJ
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