When you touch a friend after walking across a rug on a dry day, you typically draw a spark of about 2 mm. The magnitude of the electric field for which dielectric breakdown occurs in air is about 3 MV/m. Estimate the potential difference between you and your friend before the spark. Answer in units of V.

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When you touch a friend after walking across
a rug on a dry day, you typically draw a spark
of about 2 mm. The magnitude of the electric
field for which dielectric breakdown occurs in
air is about 3 MV/m.
Estimate the potential difference between
you and your friend before the spark.
Answer in units of V.
Transcribed Image Text:When you touch a friend after walking across a rug on a dry day, you typically draw a spark of about 2 mm. The magnitude of the electric field for which dielectric breakdown occurs in air is about 3 MV/m. Estimate the potential difference between you and your friend before the spark. Answer in units of V.
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