When relocating the battery to the trunk do I have to use a 4 gauge positive battery cable? Could I use 2 gauge instead?
I read an article a couple years back that said to get wire with the most amount of individual strands in it. Flexibility will be higher and current carrying ability goes up. The theory is that given the same gauge wire the electrons travel on the outermost section of the strands and having more smaller wires conducts better than less wires of a thicker diameter. Just something to consider if you are comparing two of the same gauge wires with different numbers of strands.
Skin effect is not present in DC current. Skin effect is a function of frequency, which is 0 in DC applications. The main reason for stranded wire is the flexibility. If large gauge wire was not stranded, it would be a bear to use.
U are correct abt skin effect being a product of AC and frequency. Thanks for the correction. I never thought the effect was only a AC product.