Question

Дано:
R2=6Om
Rобщая=4Om
A2=3A
Найти:
R1=?
V=?
A=?
A1=?

Answer 1

R2=6 Ом   I2=3 A    R=4 Ом   R1=?  U=?   I=?   I1=?

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U=I2*R2=3*6=18 B

1/R=1/R1+1/R2

R1=R*R2/(R-R2)=6*4/(6-4)=12 Ом

I1=U/R1=18/12=1.5 A

I=I1+I2=1.5+3=4.5 A

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