Ответ:
132кДж
U=220В
I=0.5A
t=1200c
Q=UIt
Q=220*0.5*1200=132кДж
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Ответ:
132кДж
U=220В
I=0.5A
t=1200c
Q=UIt
Q=220*0.5*1200=132кДж