Ответ:
Объяснение:
R3 = U3/I = 12 /4 = 3 Ома
r12 = R1*R2 / (R1+R2) = 5*15 / (5+15) = 3.75 Ом
R = r12+R3 = 3.75+3= 6.75 Ом
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Ответ:
Объяснение:
R3 = U3/I = 12 /4 = 3 Ома
r12 = R1*R2 / (R1+R2) = 5*15 / (5+15) = 3.75 Ом
R = r12+R3 = 3.75+3= 6.75 Ом