Which statement best describes the effect of dry skin on current flow compared to moist skin?

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Study for the Con Edison Basic Electric Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which statement best describes the effect of dry skin on current flow compared to moist skin?

Explanation:
Moisture changes how easily electricity can move through the skin. The outer skin layer acts as a barrier, and when it’s dry that barrier is a strong insulator, giving a high resistance. When the skin is moist, water and the salts in sweat create conductive paths for ions, so the resistance drops and more current can pass at the same voltage. So, dry skin has higher resistance than moist skin, which means current flow is reduced with dry skin and increased with moist skin. The other options would imply the opposite or that resistance is the same, which doesn’t align with how moisture lowers the skin’s impedance.

Moisture changes how easily electricity can move through the skin. The outer skin layer acts as a barrier, and when it’s dry that barrier is a strong insulator, giving a high resistance. When the skin is moist, water and the salts in sweat create conductive paths for ions, so the resistance drops and more current can pass at the same voltage. So, dry skin has higher resistance than moist skin, which means current flow is reduced with dry skin and increased with moist skin. The other options would imply the opposite or that resistance is the same, which doesn’t align with how moisture lowers the skin’s impedance.

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