What is a method to create a smooth conducting surface on a conductor?

Using semi-conducting tape to wrap the conductor can help create a smooth conducting surface. This type of tape is designed to provide conductive properties, allowing for better electrical contact and minimizing surface roughness. By using semi-conducting materials, the tape can facilitate the flow of electricity while also enhancing the overall performance of the conductor.

In contrast, wrapping a conductor in insulating tape would hinder electrical flow, as the insulation prevents the transfer of electricity. Using a thicker gauge wire may improve current-carrying capacity but does not necessarily contribute to creating a smooth surface. Coating the conductor in oil might provide some level of lubrication or protection, but it would not enhance the electrical conductivity or surface smoothness required for optimal performance.