How Do I Calculate Resistance and Voltage in a Multi-Material Cable?

[Alfcon]

Hi, if I have 3 naded wires copper, Tin and Lead wrapped into one cable and I run 12v through it how do I work out the amount of resistance I get and the total voltage at the other end?

 

[vk6kro]

Hi, if I have 3 naded wires copper, Tin and Lead wrapped into one cable and I run 12v through it how do I work out the amount of resistance I get and the total voltage at the other end?

You mean insulated wires?

You work out the resistance of each wire (using the resistivity formula) and then the combined resistance of the wires in parallel if they are connected in parallel.

The voltage out depends on the current, of course.