Why should the copper wires in the wires be made into a lot of very fine silk?
The thread is the smallest material, the resistivity is the smallest, the surface area is the largest, the plasticity is the best, it is not easy to deform, soft, easy to bend, difficult to break, easy to connect with other lines and break up.
There are two reasons: 1, like a friend said above is to let some soft wire assembly for certain occasions; 2, LZ heard the skin effect, is the only high frequency alternating current along the wire surface and go inside a wire is not go to current (actually closer to the wire axis current is weak, the more close to the surface of the wire current is strong, so the strands will greatly improve the wire surface area.
Increased softness, making the wires flex easily.
Improve the softness of the lines, not easy to break.
Need to use, and sometimes large lines do not do fine words, it is not good operation. A lot of very thin silk is better than one.
