R=U/I
R1=10/0.5=20 Ом
R2=30/1=30 Ом
R3=30/0.5=60 Ом
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Verified answer
R=U/I
R1=10/0.5=20 Ом
R2=30/1=30 Ом
R3=30/0.5=60 Ом
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