/sci/ - Science & Math

>>14648155
My confusion comes from the fact that current capacity only seems to take into account the current, not the total power. Since the 10m wire introduces more total resistance in the circuit, less current will flow. But yet the power dissipation in the 10m wire is bigger than the others since it drops more voltage than in the others.

The only way current capacity working like that makes sense to me then is to assume that the longer wire must be better at dissipating heat because it's longer and the dissipation spreads out.