E=I^2Rt
R=U/I=220/5=44
20min=1200cek
E=25*44*1200=1320kДж
ответ:1320кДж
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E=I^2Rt
R=U/I=220/5=44
20min=1200cek
E=25*44*1200=1320kДж
ответ:1320кДж