Ответ:
1) I = U/R
I = 3/3 = 1 А
2) I = U/R
R = U/I
R = 5/1 = 5 Ом
3) R = 5 + 4 = 9 Ом
I = U/R
U = I×R
U = 2×9 = 18 В
4) R = 6/2 = 3 Ом
I = 18/3 = 6 А
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Ответ:
1) I = U/R
I = 3/3 = 1 А
2) I = U/R
R = U/I
R = 5/1 = 5 Ом
3) R = 5 + 4 = 9 Ом
I = U/R
U = I×R
U = 2×9 = 18 В
4) R = 6/2 = 3 Ом
I = U/R
I = 18/3 = 6 А