U=4 B t=1 c W=0.8 Дж I=?
W=I*U*t I=W/(U*t)=0.8/(4*1)=0.2 A
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U=4 B t=1 c W=0.8 Дж I=?
W=I*U*t I=W/(U*t)=0.8/(4*1)=0.2 A
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Дано: U=4В t=1c A=0.8Дж Найти: I-? Решение: 1) A=IUt 2) I=A/Ut 3)I=0.8Дж/4В*1с=0.2A Ответ: I=0.2А