Physics-ch-26/exercise 33
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Physics for Scientists and Engineers (9th Edition)

Chapter-26

Table of Content


Question 33





Q33: As a person moves about in a dry environment, elec- tric charge accumulates on the person’s body. Once it is at high voltage, either positive or negative, the body can discharge via sparks and shocks. Consider a human body isolated from ground, with the typical capacitance F.
(a) What charge on the body will produce a potential of V?
(b) Sensitive electronic devices can be destroyed by electrostatic discharge from a person. A particular device can be destroyed by a discharge releasing an energy of J. To what volt- age on the body does this situation correspond?