Вопрос школьника по предмету Физика
сила тока в цепи состоящии из реостала и батарей равна 2А при напряжении на реостате 8в Наити ЭДС батарей если ее внутрение сопративление равна 10 ом
Ответ учителя по предмету Физика
R=U/I=8В/2А=4Ом
ЭДС=I(R+r) =2*(4+10)=28В
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