Ответ:
99 A
Объяснение:
U1=420B
I=297F
U2=140B
U1/I1=U2/I2
R1=R2=R
I2=I1*U2/U1
I2=297*140/420 = 99 A
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. I= U/R ; R=U1/I1=
R= 420/297 = 140/99 = 1,41414
I2= 140 ÷ 140/99 = 140 × 99/140 = 99A.
Ответ:
99 A
Объяснение:
U1=420B
I=297F
U2=140B
U1/I1=U2/I2
R1=R2=R
I2=I1*U2/U1
I2=297*140/420 = 99 A