Which statement regarding static electricity and relative humidity is accurate?

Study for the Maine Fuel Board Tank Setter Test. Access flashcards and multiple choice questions, each with detailed hints and explanations, to ace your exam!

Static electricity is significantly influenced by humidity levels in the air. When humidity is low, the moisture content in the air is reduced, which limits the ability of moisture to carry away static charges. This results in a higher accumulation of static electricity on surfaces, as there is insufficient moisture to help dissipate the charge. Therefore, situations with low relative humidity often lead to a higher potential for static discharge, making static charge more prominent.

In contrast, when humidity is high, the air is filled with water vapor, which can facilitate the transfer and dissipation of static charge. This is why static charges tend to be lower in high-humidity environments; the presence of moisture allows charges to dissipate more effectively and reduces the likelihood of shocks or sparks.

The understanding of how humidity impacts static electricity is crucial, especially in settings where static discharge can pose hazards, such as in fueling stations or areas dealing with flammable materials. Thus, a clear understanding of this principle helps individuals manage and mitigate risks associated with static electricity.

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