Handbook 652 Body Electrical Diagnosis Conductors A conductor provides a low resistance pathway for current. All conductors have a certain amount of resistance. The resistance is determined by the conductor ’ s: • Diameter - Larger area has less resistance. • Length - Shorter wire has less resistance. • Material - Some materials conduct better than others. • Temperature - Heat increases the resistance in the conductor. • Physical Condition - Corrosion or nicks in the wire increase resistance. Current flow occurs through the conductor any time there is a continuous connection between the positive and negative terminals of the voltage source. 14 Technical Training