" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
ρ=2*10^-8 Ω*m
J=300kA/m²=300*10^3 A/m²=3*10^5 A/m²
U=?
----------------------------------------------------
R=ρ*l/s
J=I/s stąd I=J*s
z prawa Ohma U=I*R
U=(J*s)(ρ*l/s)=J*ρ*l
U=3*10^5 * 2*10^-8 * 300=1,8 [(A/m²)*Ω*m*m=A*Ω=A*V/A=V]
U=1,8V
jednak można policzyć, pozdrawiam