Ответ:
2,7*10^-4 Ом
Объяснение:
po1=7800 кг/м³ po2=0.13*10^-6 Ом*м P=1 H d=10^-2 м R=?
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R=po2*L/S
S=π*d²/4
P=m*g=po1*V*g
V=L*S
L=P/(po1*S*g)
R=po2*P/(po1*S²*g)=16*po2*P/(po1*π²*d^4*g)=
=16*0.13*10^-6*1/(7800*3.14²*10^-8*10)=2.7*10^-4 Ом
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Verified answer
Ответ:
2,7*10^-4 Ом
Объяснение:
po1=7800 кг/м³ po2=0.13*10^-6 Ом*м P=1 H d=10^-2 м R=?
===
R=po2*L/S
S=π*d²/4
P=m*g=po1*V*g
V=L*S
L=P/(po1*S*g)
R=po2*P/(po1*S²*g)=16*po2*P/(po1*π²*d^4*g)=
=16*0.13*10^-6*1/(7800*3.14²*10^-8*10)=2.7*10^-4 Ом
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