What is the term for the difference in voltage between two objects that a person simultaneously contacts?

The term for the difference in voltage between two objects that a person simultaneously contacts is "touch potential." This concept is crucial in electrical safety, especially in the context of utility work and arboriculture, where high voltage systems are involved.

When a person touches two conductive objects at different voltages, a potential difference—known as touch potential—exists. This situation can lead to electric shock if one object is at a significantly higher voltage than the other. Understanding touch potential is essential for arborists who may work near overhead power lines or underground utilities, as it helps assess the risk of accidental electrical contact.

The other terms in the choices, such as "current potential," "voltage disparity," and "resistance factor," do not accurately describe this specific situation. Current potential is not a recognized term in electrical safety; voltage disparity might imply a difference in voltage but does not specifically refer to the scenario of touching two objects; and resistance factor pertains more to the materials' ability to resist electrical flow rather than the specific voltage difference experienced during contact.