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hoss
@hoss
October 2021
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За 5 мин. электрический паяльник выделил 1,5 кДж теплоты . Каково электрическое сопротивление паяльника ,если сила тока в нем равна 0.5 А.
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helpme58
Verified answer
Q= I^2 * R *t
R= Q \ ( I^2 t)
R= 1500 дж / (0.25*300с)=20 Ом
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Answers & Comments
Verified answer
Q= I^2 * R *tR= Q \ ( I^2 t)
R= 1500 дж / (0.25*300с)=20 Ом