даю 123 бали

даю 123 бали

  • 1) P = U ^ 2 / R = 100 ^ 2/400 = 25 Вт
    2) Q = I * U * t = 5 * 220 * 60 = 66 000 Дж
    3) R23 = R1 + R2 = 1 + 1 = 2 Ом
    Rоб = R23 * R3 / R23 + R3 = 2 * 2/2 + 2 = 1 Ом
    Iоб = Uоб / Rоб = 12.1 = 12 А
    I3 = Uоб / R3 = 12/2 = 6 A
    I1 = I2 = Uоб / R23 = 12/2 = 6 A
  • Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.