Ответ:
Объяснение:
найдем эквиваленты сопротивлений.
R234 = r2*r3*r4 / (r2*r3 + r3*r4 + r2*r4) = 20*10*50 / (20*10 + 10*50 + 20*50) =
= 5.88 Ом
R = R234+r1 = 5.88 + 2.12 = 8 Ом
I1 = U/R = 240 / 8 = 30A
U1 = I1*R1 = 30*2.12 = 63.6 B
U2=U3=U4= U - U1 = 240 - 63.6 = 176.4 B
I2=U2 / r2 = 176.4 / 20 = 8.82 A
I3 = U3 / r3 = 176.4 / 10 = 17.64 A
I4 = U4 / r4 = 176.4 / 50 = 3.53 A
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Ответ:
Объяснение:
найдем эквиваленты сопротивлений.
R234 = r2*r3*r4 / (r2*r3 + r3*r4 + r2*r4) = 20*10*50 / (20*10 + 10*50 + 20*50) =
= 5.88 Ом
R = R234+r1 = 5.88 + 2.12 = 8 Ом
I1 = U/R = 240 / 8 = 30A
U1 = I1*R1 = 30*2.12 = 63.6 B
U2=U3=U4= U - U1 = 240 - 63.6 = 176.4 B
I2=U2 / r2 = 176.4 / 20 = 8.82 A
I3 = U3 / r3 = 176.4 / 10 = 17.64 A
I4 = U4 / r4 = 176.4 / 50 = 3.53 A