The density of copper is 8900kg/m3
Volume Mass/ density Volume 1.5kg/ 8900kg/m^3 Volume 1.68x10^-4 Volume Area *Length Area Volume/Length Resistivity Resistance* (Area/Length) Resistivity of Copper at 20C is 1.68x10^-8 Resistivity Resistance* ((Volume/Length)/Length) Resistivity Resistance* (Volume/Length^2) Solve above equation for Length Length 1581m Resistivity Resistance* (Area/Length) Solve above equation for Area Use A PI*(diameter/2)^2 to solve for diameter Diameter 3.67x10^-4 m
Do a Yahoo Search on deep ocean volcanoes, deep basin rift zones, black smokers and solution deposits in metamorphosed deposits. The dynamics of the earth lend themselves to the collective nature of economic deposits.
Certain geologic features lend themselves to producing certain substances. And you are dealing with forces and processes that began millions of years ago.
250 1.7*10^-8*l/s where : l is in m s is in m^2 Vol s*l 1.5/8,900 0.000169 m^3 (1.69*10^-4 m^3) l 1.69*10^-4/s 250 1.7*10^-8*(1.69*10^-4/s)/s 250s^2 2.87*10^-12 s √(2.87*10^-12/250) 1.07*10^-7 m^2 (0.107 mm^2) Φ √4*s/PI √4*0.107/3.1416 0.369 mm l 1.69*10^-4/1.07*10^-7 1573 m just a final check R ρ*l/s 17*10^-3*1.573*10^3/0.107 26.74/0.107 250 ohm
