Ответ:
R = 50 Ом
R(об) = 50/3 Ом
U = 120 В
P = U²/R = 14400/50 = 288 Вт
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Ответ:
R = 50 Ом
R(об) = 50/3 Ом
U = 120 В
P = U²/R = 14400/50 = 288 Вт