Which of the following is a consequence of step potential?

The consequence of step potential that is most relevant is electrical shock or electrocution. Step potential refers to the voltage difference that individuals experience when they are in the vicinity of a voltage source, such as a downed power line. When a person stands with one foot at a different potential than the other, it creates a path for current to flow through the body.

This phenomenon is particularly dangerous in situations where there is a grounding issue or a fault condition in electrical systems. The risk of shock can lead to severe injury or even death, especially if the voltage is high. Understanding step potential is crucial for utility workers and individuals who may be exposed to electrical hazards, as it highlights the dangers associated with walking in areas where electrical equipment may be compromised.

The other options, while related to electrical systems, do not directly pertain to the dangers posed by step potential in the same way that electrical shock does. Increased electrical resistance and decreased efficiency in electrical systems address performance issues rather than safety concerns, while improvements in utility service imply a positive enhancement that is opposite to the potential dangers associated with step potential.