Which statement about humidity and ESD danger is true?

Which statement about humidity and ESD danger is true?

• A. FALSE
• B. SOMETIMES
• C. TRUE
• D. UNKNOWN

Answer: (C)

Humidity changes how easily static charges dissipate. In dry air, charges build up on you, tools, and materials because air is a poor conductor, so a small separation can leave a high voltage that may discharge suddenly. In humid air, water molecules form a thin conductive layer on surfaces and in the air, allowing charges to bleed away more readily, which reduces the likelihood and severity of an ESD event. Because of this clear relationship, the statement is true: humidity does affect ESD danger, and higher humidity generally lowers the risk. The other options would misstate the relationship or imply it's uncertain, which isn’t supported by how humidity impacts static discharge.

Humidity changes how easily static charges dissipate. In dry air, charges build up on you, tools, and materials because air is a poor conductor, so a small separation can leave a high voltage that may discharge suddenly. In humid air, water molecules form a thin conductive layer on surfaces and in the air, allowing charges to bleed away more readily, which reduces the likelihood and severity of an ESD event. Because of this clear relationship, the statement is true: humidity does affect ESD danger, and higher humidity generally lowers the risk. The other options would misstate the relationship or imply it's uncertain, which isn’t supported by how humidity impacts static discharge.