Which of the following is a function of bonding?

Bonding serves a critical purpose in electrical systems by connecting all conductive parts to ensure they maintain the same electrical potential. This is essential for safety, as it helps to prevent shock hazards and reduces the risk of electrical fires caused by potential differences that may occur between different conductive elements. By equalizing the electrical potential, bonding promotes system reliability and protects both equipment and individuals from electrical faults.

In contrast, other functions mentioned do not align with the primary role of bonding. For instance, isolating electrical systems is more relevant to grounding, which aims to protect systems by providing a path for fault currents. Creating resistance in circuits and increasing load capacity do not pertain to the concept of bonding either, as they relate to circuit performance and capacity rather than the safety mechanisms provided by proper bonding of conductive elements.