Inside a capacitor are two surfaces, separated by insulating material. When the capacitor is charged, one surface is positively charged, the other is negatively charged.
To prevent noise (interference), some vehicles use shielded wiring harnesses. The type of shielding used can be one of three forms: twisted pair, Mylar tape and drain lines.
As the length of the wire increases, so does the resistance within the wire. Therefore the greater the length of the wire, the larger the cross-sectional area needs to be.
