(II) An electric field greater than about 3X106 V/M causes
Chapter 17, Problem 15P(choose chapter or problem)
Problem 15P
(II) An electric field greater than about 3X106 V/M causes air to break down (electrons are removed from the atoms and then recombine, emitting light). See Section 17–2 and Table 17–3. If you shuffle along a carpet and then reach for a doorknob, a spark flies across a gap you estimate to be 1 mm between your finger and the doorknob. Estimate the voltage between your finger and the doorknob. Why is no harm done?
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