Ответ:
R=U/I=4,5/0,5=9 Ом;
R=ρʟ/S =>
ʟ=R*S/ρ=9*0,2*10⁻⁶/1,1*10⁻⁶=1,(63)≈1,6 м.
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Ответ:
R=U/I=4,5/0,5=9 Ом;
R=ρʟ/S =>
ʟ=R*S/ρ=9*0,2*10⁻⁶/1,1*10⁻⁶=1,(63)≈1,6 м.