Which of the following creates an electrical connection between two metal objects?

Creating an electrical connection between two metal objects is fundamentally achieved through bonding. Bonding involves connecting two or more metallic components together to ensure they have the same electrical potential. This minimizes the risk of dangerous voltage differences that could lead to electric shock or equipment damage.

The process of bonding is crucial in electrical systems, especially in grounding applications, where it ensures that all metal parts are at the same electrical potential, thus providing safety and preventing electrical hazards. By ensuring that two metal objects are electrically connected, bonding helps to ensure stability within an electrical system, especially against various fault conditions.

In contrast, grounding refers to connecting electrical circuits to the earth, insulation pertains to materials that prevent the flow of electricity, and shielding is used to protect sensitive components from electromagnetic interference. None of these other processes primarily focuses on creating a direct electrical connection between two metallic objects like bonding does.