Ответ:
Объяснение:
r13 =R1+R3 = 10+15 = 25 Ом
I1 = I3 = U / r13 = 14 / 25 = 0.56 A
r24 =R2+R4 = 18+13 = 31 Ом
I2 = I4 = U / r24 = 14 / 31 = = 0.452 A
I = I1 + I2 = 0.56 + 0.452 = 1.012 A
P = U*I = 14*1.012 == 14.17 Вт
P1 = R1*I1^2 = 10*0.56^2 = 3.136 Вт
P3 = R3*I3^2 = 15*0.56^2 = 4,704 Вт
P2 = R2*I2^2 = 18*0.452^2 == 3.677 Вт
P4 = R4*I4^2 = 13*0.452^2 == 2,656 Вт
P1+P2+P3+P4 = P
3.136+4.704+3.677+2.656 == 14.17 Вт
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Ответ:
Объяснение:
r13 =R1+R3 = 10+15 = 25 Ом
I1 = I3 = U / r13 = 14 / 25 = 0.56 A
r24 =R2+R4 = 18+13 = 31 Ом
I2 = I4 = U / r24 = 14 / 31 = = 0.452 A
I = I1 + I2 = 0.56 + 0.452 = 1.012 A
P = U*I = 14*1.012 == 14.17 Вт
P1 = R1*I1^2 = 10*0.56^2 = 3.136 Вт
P3 = R3*I3^2 = 15*0.56^2 = 4,704 Вт
P2 = R2*I2^2 = 18*0.452^2 == 3.677 Вт
P4 = R4*I4^2 = 13*0.452^2 == 2,656 Вт
P1+P2+P3+P4 = P
3.136+4.704+3.677+2.656 == 14.17 Вт