Ответ:
Объяснение:
I1 = 0.03A
U1=U2
R2 = R1*3/4
U1=I1*R1
U2=I2*R2 = I2*R1*3/4
I2*R1*3/4 = I1*R1
I2*3/4 = I1
I2 = I1*4/3 = 0.03*4/3 = 0.04A = 40мА
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Ответ:
Объяснение:
I1 = 0.03A
U1=U2
R2 = R1*3/4
U1=I1*R1
U2=I2*R2 = I2*R1*3/4
I2*R1*3/4 = I1*R1
I2*3/4 = I1
I2 = I1*4/3 = 0.03*4/3 = 0.04A = 40мА