What is different about the insides of wires that transmit power (Charger), data (Aux, Ethernet), or both (USB-C)?

Question

Basically what is inside that allows wires to transfer only energy, only data, or both?

In: Technology

Answer 1

There is a different number of copper wires inside them. Power wires have only 2 or 3 wires inside them (+, -, and shield). Data wires have even more wires inside. Dual purpose wires like USB-C have data and power wires inside.

All copper wires inside a wire can be the same.

It’s what’s before and after the wires that change. You need to encode and decode the signals differently, and emit/reception power.